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Chinese Optics Letters 第14卷 第1期

Author Affiliations
Abstract
1 Lead Editor, Applied Optics, Virginia Tech, USA
2 Lead Editor, COL, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, China
3 University of Dayton, USA
4 Korea Electronics Technology Institute (KETI), South Korea
5 Université du Maine, France
This feature issue is the second Joint Applied Optics (AO) and Chinese Optics Letters (COL) Feature Issue on digital holography and three-dimensional (3D) imaging. The first installment of such a joint feature issue was in 2011. In the present feature issue, there are a total of 24 papers in AO and 9 papers in COL.
Chinese Optics Letters
2016, 14(1): 010001
Author Affiliations
Abstract
Department of Electrical Engineering, Penn State University, University Park, PA 16802, USA
One of the most fascinating principles in quantum mechanics must be Heisenberg’s uncertainty principle, which can be briefly stated as follows: every physical observation cannot be precisely determined without some degree of error or uncertainty. And it is by no means can one use the principle within the limit of certainty region, as will be shown in this Letter. Two of the most important pillars in modern physics must be Einstein’s relativity theory and Schr dinger’s contribution to quantum mechanics. Yet, there is a profound connection between these discoveries by means of the uncertainty relationship, in which we shown that the observation of a high-speed object is conceivable if the speed of the observer keeps up with object’s speed.
000.1600 Classical and quantum physics 000.2690 General physics 
Chinese Optics Letters
2016, 14(1): 010002
Author Affiliations
Abstract
1 Electroholography Group, Brigham Young University, 459 Clyde Building, Provo, Utah 84602, USA
2 MIT Media Laboratory, Massachusetts Institute of Technology, 77 Mass. Ave, Cambridge, Massachusetts 02139, USA
This paper presents progress on the characterization of guided-wave light modulators for use in a low-cost holographic video monitor based on the MIT scanned-aperture architecture. A custom-built characterization apparatus was used to study device bandwidth, RGB operation, and linearity in an effort to identify optimal parameters for high bandwidth, GPU-driven, full-color holographic display.
090.1705 Color holography 090.1970 Diffractive optics 090.2870 Holographic display 090.2890 Holographic optical elements 090.5694 Real-time holography 
Chinese Optics Letters
2016, 14(1): 010003
Author Affiliations
Abstract
1 Department of Electronic Engineering, City University of Hong Kong, Hong Kong SAR, China
2 Bradley Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA 24061, USA
3 Department of Photonics, Feng Chia University, No. 100 Wenhwa Rd., Taichung 407, China
Past research has demonstrated that a phase-only hologram can be obtained by down-sampling the intensity image of the object scene prior to the generation of the hologram. In this Letter, we extend the method to the generation of binary phase-only holograms. A hologram derived with our proposed method is referred to as a binary-sampled phase-only hologram (BSPOH). Being different from the parent scheme, we have adopted an off-axis configuration in the generation of the BSPOH to avoid the quantization noise, the zeroth-order light, and the conjugate lights. An experimental evaluation reveals that the reconstructed image of the BSPOH is of good quality, and only contains slight amount of noise.
090.0090 Holography 090.1995 Digital holography 090.1760 Computer holography 
Chinese Optics Letters
2016, 14(1): 010004
Author Affiliations
Abstract
State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
A time-division multiplexing method for computer-generated holograms (CGHs) is proposed to solve the problem of the limited space-bandwidth product. A three-dimensional (3-D) scene is divided into multiple layers at different depths. The CGH corresponding to each layer is calculated by an angular-spectrum algorithm that is effective at a wide range of propagation distances. All of the CGHs are combined into several group-CGHs. These group-CGHs are sequentially uploaded onto one spatial light modulator at a high frame rate. The space-bandwidth product can be benefited by the time-division processing of the CGHs. The proposed method provides a new approach to achieve high quality 3-D display with a fast and accurate CGH computation.
090.0090 Holography 090.1760 Computer holography 090.2870 Holographic display 
Chinese Optics Letters
2016, 14(1): 010005
Author Affiliations
Abstract
1 Bradley Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA 24061, USA
2 Lab of Information Optics and Optoelectronic Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Anisotropic edge enhancement is simulated using a spiral phase plate (SPP) in optical scanning holography (OSH). We propose to use a delta function and an SPP as the pupil functions to realize anisotropic edge enhancement. The interference of these two pupils is used to two-dimensionally scan an object to record its edge-only information. This is done in three ways: first, by shifting the SPP, second, by using two offset SPPs of same charge, and finally, by using two oppositely charged SPPs. Our computer simulations show the capability of selectively enhancing the edges of a given object.
100.2980 Image enhancement 090.1995 Digital holography 070.6110 Spatial filtering 
Chinese Optics Letters
2016, 14(1): 010006
Author Affiliations
Abstract
AFC Technology Co., Ltd., Shenzhen 518104, China
A novel method for a full-parallax three-dimensional (3D) holographic display by means of a lens array and a holographic functional screen is proposed. The process of acquisition, coding, restoration, and display is described in detail. It provides an efficient way to transfer the two-dimensional redundant information for human vision to the identifiable 3D display for human eyes. A holo-video system based on a commercial 4 K flat-panel displayer is demonstrated as the result.
090.2870 Holographic display 100.6890 Three-dimensional image processing 
Chinese Optics Letters
2016, 14(1): 010007
Author Affiliations
Abstract
1 College of Applied Sciences, Beijing University of Technology, Beijing 100124, China
2 Institute of Information Photonics Technology, Beijing University of Technology, Beijing 100124, China
We present a polarization-multiplexing off-axis Mach–Zehnder configuration for dual-wavelength digital holography to achieve phase imaging in one shot. In this configuration, two orthogonal linear-polarized waves with respect to different wavelengths are employed to record respective holograms synchronously, where two recording waves transmit independently through the same optical paths of the interferometer, and by installing two analyzer polarizers each to filter off either of two wavelengths, and filtering through the other, the holograms are acquired, respectively, by a pair of CCDs at the same time. The unwrapped phase image of a grating with groove depth 7.1 μm is retrieved via spatial frequency filtering.
090.1995 Digital holography 090.5694 Real-time holography 
Chinese Optics Letters
2016, 14(1): 010008
Author Affiliations
Abstract
1 State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
2 Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China
A polarization holographic grating, which integrates the functions of a grating and a wave plate and is called a diffractive wave plate, is recorded by two beams (left and right circularly polarized) of a 532 nm laser in an azo polymer with a liquid-crystal structure. The polarization conversion characteristics of the diffractive wave plates are investigated with a detecting light of 650 nm by metering the polarization state of first-order diffracted light. It is confirmed that the diffractive wave plates convert the incident linear polarization into circular polarization for a linearly polarized probe laser and reverse the sense of rotation of the circular polarization when the detecting light is circularly polarized light.
090.0090 Holography 090.2880 Holographic interferometry 260.5430 Polarization 
Chinese Optics Letters
2016, 14(1): 010009
Author Affiliations
Abstract
Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, College of Electronic Science and Technology, Shenzhen University, Shenzhen 518060, China
Because the bottom of the cavity has the shadow and occlusion, the angle between the projection system and imaging system is limited. So the traditional fringe projection technique based on the principle of optical triangulation is inapplicable. This Letter presents a 3D shape measurement method of using the light tube for the cavity. The method can measure an object from two opposite views at the same time, which means it will obtain two different groups of 3D data for the same object in a single measurement. The experimental results show the feasibility and validity of the 3D shape measurement method.
110.6880 Three-dimensional image acquisition 120.5050 Phase measurement 150.1488 Calibration 
Chinese Optics Letters
2016, 14(1): 010010
Author Affiliations
Abstract
1 National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China
2 Key Laboratory of Fiber Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China
A field-programmable gate array (FPGA)-based large-capacity sensing network with ultra-weak fiber Bragg gratings (FBGs) is proposed and experimentally studied. The demodulation system is constructed to interrogate 1642 serial time-division-multiplexing FBGs with a peak reflectivity of about 40 dB and equal separations of 2.5 m. Two semiconductor optical amplifiers and an InGaAs linear sensor array controlled by an FPGA are introduced to the demodulation system to achieve fast, precise, and flexible interrogation. The low crosstalk and spectral distortion are investigated through both theoretical analysis and experiments.
060.3735 Fiber Bragg gratings 250.5980 Semiconductor optical amplifiers 060.4230 Multiplexing 
Chinese Optics Letters
2016, 14(1): 010601
Author Affiliations
Abstract
School of Electronics Engineering, Kyungpook National University, Daegu 702-701, South Korea
A wavelength-swept laser is constructed using a free space external cavity configuration coupled with a fiber-based ring cavity at the 850 nm region. The external cavity filter employs a galvo-mirror scanner with a diffraction grating for wavelength selection. The filter is connected to a ring cavity through an optical circulator. The ring cavity contains a broadband semiconductor optical amplifier with a high optical output. The performance of this laser is demonstrated with broad bandwidths and narrow linewidths. The 3 dB linewidth and the bandwidth of this source are 0.05 nm (20 GHz) and 48 nm, respectively. The maximum output power is 26 mW at 160 mA current.
140.3460 Lasers 140.3560 Lasers, ring 140.3600 Lasers, tunable 230.6080 Sources 
Chinese Optics Letters
2016, 14(1): 011401
Author Affiliations
Abstract
1 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
2 University of Chinese Academy of Sciences, Beijing, China
We produce a maximum 1.45 W laser output at 1064 nm using a neodymium-doped silicate glass fiber that has a rectangular core with dimensions of 6.3 μm×31.5 μm. The measured divergence angles of the output laser in two dimensions are 3.22° and 1.76°, respectively. The output power is stable and limited only by the available pump power.
060.2280 Fiber design and fabrication 060.3510 Lasers, fiber 140.3530 Lasers, neodymium 160.2290 Fiber materials 
Chinese Optics Letters
2016, 14(1): 011402
Author Affiliations
Abstract
1 Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
2 University of Chinese Academy of Sciences, Beijing 100049, China
3 Institute of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China
We observe a nonlinear response of a dual-wavelength Nd:YAG laser when subjected to low-frequency periodic modulations of cavity losses. The modulation frequency is far from the relaxation oscillation frequency. The harmonic resonances of the two laser wavelengths associated with antiphase intensity oscillations are demonstrated and resonances up to the fourth order were observed. For relatively weak modulation, the intensity oscillation frequency of the laser is equal to the modulation frequency. Harmonic resonances occur under a stronger modulation. We find that more harmonic components appear when the modulation frequency is increased. Furthermore, with enhancing the modulation, the dominant frequency of the intensity oscillations of both wavelengths is shifted toward the higher-order harmonic frequency.
140.3425 Laser stabilization 140.3480 Lasers, diode-pumped 190.2640 Stimulated scattering, modulation,etc. 
Chinese Optics Letters
2016, 14(1): 011403
Author Affiliations
Abstract
Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
During the formation of sub-wavelength ripples, the initial surface plasmon (SP)-laser interference plays an important role. In this Letter, the effects of grating structures on the distribution of the absorbed laser intensity, SP-laser coupling, free electron distributions, and ablation shapes are investigated by the plasma model, taking into consideration both the laser wave-particle duality and the transient localized changes of material properties. The simulation results show that the grating structures can strongly enhance the energy absorption and SP-laser coupling, which makes the fabrication of sub-wavelength ripples more efficient. It is also found that the ablation shapes, in terms of ablation depths and sub-wavelength ripples periods, are strongly related to the grating structures, which can be used to control micro/nanostructures precisely and uniformly.
140.3390 Laser materials processing 220.4241 Nanostructure fabrication 320.7090 Ultrafast lasers 
Chinese Optics Letters
2016, 14(1): 011404
Xi Peng 1,2Chidao Chen 1,2Bo Chen 1,2Yulian Peng 1,2[ ... ]Dongmei Deng 1,2,*
Author Affiliations
Abstract
1 Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510631, China
2 CAS Key Laboratory of Geospace Environment, University of Science & Technology of China, Chinese Academy of Sciences, Hefei 230026, China
By investigating the cross-spectral density of partially coherent multi-rotating elliptical Gaussian beams (REGBs) that propagate through a focusing optical system, we obtain the radiation force on a Rayleigh particle. The radiation force distribution is studied under different beam indexes, coherence widths, and elliptical ratios of the partially coherent multi REGBs. The transverse and the longitudinal trapping ranges can increase at the focal plane by increasing the beam index or decreasing the coherence width. The range of the trapped particle radii increases as the elliptical ratio increases. Furthermore, we analyze the trapping stability.
140.3295 Laser beam characterization 140.7010 Laser trapping 350.5500 Propagation 
Chinese Optics Letters
2016, 14(1): 011405
Author Affiliations
Abstract
Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Science, and Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Beijing 100083, China
A terahertz excitation source based on a dual-lateral-mode distributed Bragg reflector (DBR) laser working in the 1.5 μm range is experimentally demonstrated. By optimizing the width of the ridge waveguide, the fundamental and the first-order lateral modes are obtained from the laser. The mode spacing between the two modes is 9.68 nm, corresponding to a beat signal of 1.21 THz. By tuning the bias currents of the phase and DBR sections, the wavelengths of the two modes can be tuned by 2 nm, with a small strength difference (<5 dB) and a large side-mode suppression ratio (SMSR>45 dB).
140.5960 Semiconductor lasers 250.5960 Semiconductor lasers 
Chinese Optics Letters
2016, 14(1): 011406
Author Affiliations
Abstract
1 , Qingdao 266071, China
2 , Qingdao 266071, China
3 , Jinan 250100, China
We report on the continuous-wave (CW) and passive Q-switching performance of a miniature Yb:Y3Ga5O12 crystal laser end pumped by a 935-nm diode laser. A maximum CW output power of 12.03 W is produced with an optical-to-optical efficiency of 54.4%, while the slope efficiency is 63%. In the passively Q-switched operation achieved with a Cr4+:YAG saturable absorber, an average output power of 2.12 W at 1025.2 nm is generated with a slope efficiency of 46% at a pulse repetition rate of 5.0 kHz. The pulse’s energy, duration, and peak power are 424 μJ, 2.3 ns, and 184.3 kW, respectively.
140.3615 Lasers, ytterbium 140.3540 Lasers, Q-switched 140.3480 Lasers, diode-pumped 
Chinese Optics Letters
2016, 14(1): 011407
Author Affiliations
Abstract
Department of Optics and Optical Engineering, Anhui Key Laboratory of Optoelectronic Science and Technology, University of Science and Technology of China, Hefei 230026, China
The interference of optically induced electric and magnetic resonances in high-refractive-index dielectric nanoparticles provides a new approach to control and shape the scattering patterns of light in the field of nanophotonics. In this Letter, we spectrally tune the electric and magnetic resonances by varying the geometry of a single isolated lead telluride (PbTe) dielectric nanocube. Then, we overlap the electric dipole resonance and magnetic dipole resonance to suppress backward scattering and enhance forward scattering in the resonance region. Furthermore, a broadband unidirectional scattering is achieved by structuring the dielectric nanocuboids as a trimer antenna.
160.3918 Metamaterials 290.0290 Scattering 050.6624 Subwavelength structures 
Chinese Optics Letters
2016, 14(1): 011601
Man Hu 1,2Weiwei Ke 3,4Yifeng Yang 1Min Lei 1[ ... ]Jun Zhou 1,**
Author Affiliations
Abstract
1 Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
2 University of Chinese Academy of Sciences, Beijing 100049, China
3 Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
4 Key Laboratory of Science and Technology on High Energy Laser, CAEP, Mianyang 621900, China
A low-threshold Raman effect in a kilowatt ytterbium-doped narrowband fiber amplifier system is reported. The Raman Stokes light at 1120 nm is achieved with the total output power of only 400 W, indicating that the Raman threshold of this kilowatt codirectional pumped continuous wave fiber amplifier is much lower than the predicted value estimated by the classic formula. To figure out the mechanism of this phenomenon, simulations based on the general stimulated Raman scattering (SRS) model are analyzed indicating that the key factor is the coupling between four-wave mixing (FWM) and SRS. The simulation results are in good agreement with our experiments.
190.0190 Nonlinear optics 140.3510 Lasers, fiber 190.5650 Raman effect 190.4380 Nonlinear optics, four-wave mixing 
Chinese Optics Letters
2016, 14(1): 011901
Author Affiliations
Abstract
1 State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
2 College of Communication Engineering, Jilin University, Changchun 130012, China
3 College of Information Technology, Jilin Agricultural University, Changchun 130118, China
4 Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
Pockel’s effect and optical rectification induced by the built-in electric field in the space charge region of a silicon surface layer are demonstrated in a {001}-cut high-resistance silicon crystal. The half-wave voltage is about 203 V, deduced by Pockel’s effect. The ratio χzxx(2)/χzzz(2) is calculated to be about 0.942 according to optical rectification. Our comparison with the Kerr signal shows that Pockel’s signal is much stronger. This indicates that these effects are so considerable that they should be taken into account when designing silicon-based photonic devices.
230.2090 Electro-optical devices 190.4350 Nonlinear optics at surfaces 
Chinese Optics Letters
2016, 14(1): 012301
Author Affiliations
Abstract
1 State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China
2 Beijing Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing 102249, China
A lateral photovoltaic effect (LPE) is discovered in an LaTiO3+δ film epitaxially grown on a (100) SrTiO3 substrate. Under the illumination of a continuous 808 nm laser beam that is focused on the LaTiO3+δ film through the SrTiO3 substrate, the open-circuit photovoltage depends linearly on the illuminated position. The sensitivity of the LPE can be modified by the bias current. The LaTiO3+δ film shows a stable photoelectric property under the high pressure, up to 9 MPa. These results indicate that the LaTiO3+δ films can give rise to a potentially photoelectronic device for near-infrared position-sensitive detection in high-pressure environments.
310.6870 Thin films, other properties 230.5160 Photodetectors 040.5350 Photovoltaic 
Chinese Optics Letters
2016, 14(1): 013101