发明名称 |
LIGHT GENERATION METHOD AND LIGHT SOURCE |
摘要 |
The present invention provides a light generation method and a light source that are preferable in obtaining a single-mode light having high outputs, a small wavelength spectral bandwidth, and a low intensity noise. A white output from a white-light source and having wavelength components over a wide-band in a wavelength spectrum passes through an isolator and is then filtered by a disc-shaped optical filter. A transmitted light is input to a semiconductor optical amplifier having its polarization plane regulated by a polarization controller. An output from the amplifier passes through an isolator and is then filtered by a disc-shaped optical filter again to generate a single-mode light having a small spectral bandwidth and high outputs. Polarization control by the polarization controller corresponds to control of the polarization plane of a semiconductor laser in the semiconductor optical amplifier so as to obtain a maximum gain from the amplifier. This configuration enables a single-mode light having a small spectral bandwidth and high outputs to be easily generated at an arbitrary wavelength.
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申请公布号 |
CA2295353(A1) |
申请公布日期 |
2000.07.14 |
申请号 |
CA20002295353 |
申请日期 |
2000.01.12 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
KATAGIRI, YOSHITADA;NAGAOKA, SHINJI;FUJIWARA, MASAMICHI;TAKACHIO, NOBORU;SUZUKI, KEN-ICHI;OHIRA, FUMIKAZU |
分类号 |
H01S3/10;H01S3/06;H01S3/067;H01S3/08;H01S3/083;H01S5/10;H01S5/50;(IPC1-7):H04B10/04;F21V9/00;H04J14/02;G02B5/20 |
主分类号 |
H01S3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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