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Registered LASER DIODE GENERATING PASSIVE MODE AND METHOD OF CREATING OPTICAL PULSE USING THE SAME DIODE

distributed feedback reflector를 가지는 레이저 다이오드에서의 passive mode locking
이미지 확대
Inventors
Leem Young Ahn, Sim Eundeok, Dong Churl Kim, Park Kyung Hyun
Application No.
11438201 (2006.05.22)
Publication No.
20070091942 (2007.04.26)
Registration No.
7720128 (2010.05.18)
Country
UNITED STATES
Project Code
04MB5900, Development of all optical 3R regenerator based on semiconductor, Park Kyung Hyun
Abstract
Provided are a laser diode generating passive mode locking that does not contain non-linear sector of an SA, and a method of creating an optical pulse using the same diode. The laser diode includes a DFB sector serving as a reflector and a gain sector. The gain sector is connected to the DFB sector and includes an as-cleaved facet formed at the end of the gain sector. When a current less than a threshold current is applied to the DFB sector to allow the DFB sector to operate as a reflector, passive mode locking occurs swiftly and therefore a sector of the SA is not required, which makes manufacturing simple. Also, it is possible to effectively extend a frequency variable region compared to using of the SA.
KSP Keywords
Distributed feedback, Laser diode(LD), Mode-locking, Optical pulse, Passive mode-locking(PML), Threshold current, Variable region, non-linear, passive mode