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