The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 17, 2006

Filed:

Jun. 14, 2004
Applicants:

Dong-jae Shin, Suwon-si, KR;

Jeong-seok Lee, Anyang-si, KR;

Seung-woo Kim, Seoul, KR;

Seong-taek Hwang, Pyeongtaek-si, KR;

Inventors:

Dong-Jae Shin, Suwon-si, KR;

Jeong-Seok Lee, Anyang-si, KR;

Seung-Woo Kim, Seoul, KR;

Seong-Taek Hwang, Pyeongtaek-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H10S 5/50 (2006.01);
U.S. Cl.
CPC ...
Abstract

A reflective semiconductor optical amplifier light source is disclosed. The reflective semiconductor optical amplifier light source includes a transmissive type semiconductor optical amplifier for creating and amplifying spontaneous emission light, a reflector for reflecting amplified spontaneous emission light outputted from the semiconductor optical amplifier such that amplified spontaneous emission light is reflected back into the semiconductor optical amplifier, and a bandpass filter having a predetermined wavelength band width for limiting wavelength bands of the amplified spontaneous emission light capable of passing through the bandpass filter. In one aspect of the invention, the bandpass filter is interposed between the semiconductor optical amplifier and the reflector. In another aspect, a polarization filter is imposed to limit the reflected emission light to a predetermined polarization.


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