发明名称 |
LIGHT SOURCE APPARATUS WITH MODULATION FUNCTION AND ITS DRIVING METHOD |
摘要 |
A light source apparatus with modulation function has a wavelength conversion module (75) composed of a nonlinear optical material with a structure having a nonlinear constant modulated periodically. It outputs a difference frequency or sum frequency produced by multiplexing pumping light from semiconductor laser light sources (71) and (72) with different wavelengths through a WDM coupler (74) and by launching the multiplexed light into the optical waveguide. The semiconductor laser light source (72) includes a diffraction grating. The semiconductor laser light source (71) includes a section for modulating output light emitted from its semiconductor laser, and is connected to an external FBG (73) which has a reflection band narrower than a resonance wavelength spacing determined by the device length of the semiconductor laser. The FBG (73) is supplied with the modulated output.
|
申请公布号 |
US2010053720(A1) |
申请公布日期 |
2010.03.04 |
申请号 |
US20060813982 |
申请日期 |
2006.01.17 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION;NTT ELECTRONICS CORPORATION, |
发明人 |
MAGARI KATSUAKI;YANAGAWA TSUTOMU;NISHIDA YOSHIKI;MAWATARI HIROYASU;TADANAGA OSAMU;ASOBE MASAKI;SUZUKI HIROYUKI;MIYAZAWA HIROSHI;YUMOTO JUNJI |
分类号 |
G02F1/025;G02F1/365;G02F1/377 |
主分类号 |
G02F1/025 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|