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摘要

The authors would like to apologize for an error in the paper Chinese Optics Letters vol. 15, no. 3, page 030010.On page 030010-3, the caption for Figs. 5 (a)–(c) should read “2 μm silica” (not 3 μm polystyrene).

PDF全文 Chinese Optics Letters | 2017,15(09):093502
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摘要

A high pulse repetition frequency (PRF), high energy Ho:YAG laser directly pumped by a Tm-doped fiber laser and its application to a mid-infrared ZnGeP2 (ZGP) optical parametric oscillator (OPO) is demonstrated. The maximum polarized 2.09 μm laser pulse energy is 13.46 mJ at a PRF of 1 kHz. The corresponding peak power reaches 504 kW. In a double-resonant ZGP-OPO, a maximum mi

PDF全文 Chinese Optics Letters | 2017,15(09):091402
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An approach for full duty frequency-doubled triangle shape lightwave generation is proposed and demonstrated. It requires a dual-parallel Mach–Zehnder modulator (DP-MZM) driven by a sinusoidal signal. A stop band filter is coupled to filter out two undesired sidebands. By tuning the bias voltage applied to the DP-MZM, the output optical intensity with a full duty cycle triangl

PDF全文 Chinese Optics Letters | 2017,15(09):090603
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We propose a high temperature-sensitive long period fiber grating (LPFG) sensor fabricated by using the femtosecond laser transversal-scanning method. The femtosecond pulses scan over the whole fiber core and some part of the cladding region; the modified regions are more extended. It is found that the LPFG-I fabricated by the transversal-scanning method shows higher temperatur

PDF全文 Chinese Optics Letters | 2017,15(09):090602
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In this Letter, we present a high-speed volumetric imaging system based on structured illumination and an electrically tunable lens (ETL), where the ETL performs fast axial scanning at hundreds of Hz. In the system, a digital micro-mirror device (DMD) is utilized to rapidly generate structured images at the focal plane in synchronization with the axial scanning unit. The scanni

PDF全文 Chinese Optics Letters | 2017,15(09):090004
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To visualize the structure and organization of the brain is a fundamental requirement in the research of neuroscience. Here, combining with two-photon excitation fluorescence microscopy and transgenetic mouse GAD67, we demonstrate a custom-built second harmonic generation (SHG) microscope to discriminate brain layers and sub regions in the cerebellum and brain stem slices with

PDF全文 Chinese Optics Letters | 2017,15(09):090003
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A hollow-core metal-cladding waveguide (HCMW) optofluidic resonator that works based on a free-space coupling technique is designed. An HCMW can excite ultra-high-order modes (UOMs) at the coupled angle, which can be used as an optofluidic resonator to detect alterations of the epidermal growth factor receptor (EGFR) concentration. Theoretical analysis shows that the UOMs excit

PDF全文 Chinese Optics Letters | 2017,15(09):092301
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A scheme is proposed for tunable all-optical switching based on the double-dark states in a five-level atom-cavity system. In the scheme, the output signal light of the reflection and the transmission channels can be switched on or off by manipulating the control field. When the control light is coupled to the atom-cavity system, the input signal light is reflected by the cavit

PDF全文 Chinese Optics Letters | 2017,15(09):092702
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We demonstrate a new synchronization method for the White Rabbit system. Signals are transmitted in a single mode fiber in both directions with the same light wavelength. Without the complex calibration process of the fiber asymmetry parameter, the new method reduces the effect of chromatic dispersion and improves the synchronization accuracy. The experiment achieves timing syn

PDF全文 Chinese Optics Letters | 2017,15(10):101202
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A signal processing method of realizing a large-range displacement measurement in a sinusoidal phase-modulating laser diode interferometer is proposed. The method of obtaining the dynamic value of the effective sinusoidal phase-modulating depth is detailed, and the residual amplitude modulation is also taken into account. Numerical simulations and experiments are carried out to

PDF全文 Chinese Optics Letters | 2017,15(10):101201
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