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Conference Paper
High-Performance Operations of Sampled Grating DBR Lasers with Optimized Butt-Coupling Method
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- Authors
- Su Hwan Oh, Chul Wook Lee, Ki Soo Kim, Hyun Sung Ko, Sahng Gi Park, Moon Ho Park, Ji Myon Lee, Su Hyun Kim, Young Chul Chung
- Issue Date
- 2006-09
- Citation
- Passive Components and Fiber-based Devices III (APOC) 2006 (SPIE 6352), v.6352, pp.1-8
- Language
- English
- Type
- Conference Paper
- Abstract
- The butt-coupled (BT) sampled grating distributed Bragg reflector laser diode (SGDBR-LD) was designed and fabricated using planar buried heterostructure (PBH), enabling a low threshold current and a stable fundamental transverse mode. The but-coupled SGDBR-LD's with target tuning ranges of 44.4nm was fabricated, and the tuning ranges were experimentally measured to be 44.4nm. The measured peak periods of the fabricated SGDBR-LD's were well matched with theoretical values and output power is close to calculated values. The side mode suppression ratio of more than 35dB was obtained in the whole tuning range. The output power variation was less than 5dB, which is 4dB smaller than that of RWG structure.
- KSP Keywords
- Coupling method, Distributed Bragg reflector laser, High performance, Laser diode(LD), Low threshold current, Output power, Power variation, Sampled grating distributed Bragg reflector(SG-DBR), Transverse mode, Tuning Range, buried heterostructure