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Chin. Opt. Lett.
Research Highlights                                                                [+More]
Ultranarrow bandwidth nonlinear Faraday optical filter at rubidium D2 transition

  We demonstrate a narrowband optical filter which operates on the 52S1/2 to 52P3/2 transition at 780 nm in rubidium vapor based on optical-pumping-induced dichroism combined with Faraday anomalous dispersion effects. Its peak transmission is 18.4(2)% at the 52S1/2, F = 2 to 52P3/2, F ' = 1, 3 crossover transition, whereas at the 52S1/2, F = 2 to 52P3/2, F ' = 2, 3 crossover transition the transmi...
Optical microfiber phase modulator directly driven with low-power light

An optical microfiber phase modulator (OMPM) directly driven with low-power light is presented. Phase modulation response of OMPM is theoretically analyzed. A 10-mm optical microfiber (OM), tapered from conventional single-mode fiber, is inserted in one arm of a Michelson fiber interferometer. To drive the OMPM, 980-nm wavelength light with sinusoidal intensity modulation is injected into the inte...
High-Q microwave photonic filter with self-phase modulation spectrum broadening and third-order dispersion compensation

We propose and experimentally demonstrate a scheme of high-Q microwave photonic filter (MPF) using the techniques of self-phase modulation (SPM) spectrum broadening and third-order dispersion (TOD) com-pensation. The optical pulses from a mode-locking laser are spectrally broadened by the SPM in the highly nonlinear fiber. A wideband optical frequency comb with 365 spectral lines within 10-dB powe...
Transforming information from spin encoding to route encoding

Spin (polarization) is widely used in free-space optics, while in photonic integrated circuits (PICs), information is usually encoded in optical route. So a practical way to connect these two encoding methods is necessary for information communication. In this letter, an encoding convertor is designed to connect spin encoding and route encoding. Finite element method is used to calculate the conve...
Announcements                                [+More]
COL cover story: A New Ultranarrow Bandwidth Atomic Optical Filter Applied in Faraday Active Optical Clock [28/09/2014]

Faraday atomic optical filter is widely used in many fields, such as free space optical communication, lidar, laser frequency stabilization and atomic optical clock. Researchers aim to realize a filter with high transmission, narrow ...
COL cover story: Optical microfiber phase modulator directly driven with low-power light [25/08/2014]

Optical phase modulator is an important component in optical systems.But at present most optical phase modulators based on electro-optic effect,thermo-optic effect or elastic-optic effect are driven by electrical signal andnot suitab...
Chinese Optics Letters published feature issue on Optical 3D Display and Imaging [06/06/2014]

Chinese Optics Letters has published feature issue on optical three-dimensional (3D) display and imaging in June, 2014. 3D display and imaging technologies have attracted much attention in recent years as they can provide ultimate re...
Call for Papers: Optical 3D display and imaging Focus issue in Chinese Optics Letters [18/10/2013]

Call for Papers: Optical 3D display and imaging Focus issue in Chinese Optics Letters Guest Editors Yunlong Sheng, Laval University (Canada) Byoungho Lee, Seoul National University (Korea) Yongtian Wang, Beijing Institute of Te...
COL Cover Story: Compact triplexer based on silicon nanowire waveguides [19/04/2013]

The researchers, led by Prof. Fuwan Gan, from Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, designed a compact triplexer based on silicon nanowire waveguides. Because of the high index con...
COL Cover Story: SiON based high-resolution spectrometer-on-a-chip [19/04/2013]

The researchers, led by Prof. Jianjun He, from Zhejiang University in China, chose SiON as waveguide core layer material to obtain high index contrast, and combined the high performance spectral analysis function of echelle diffrac...
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