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Detail
Journal Article
External Cavity Lasers Composed of Higher Order Gratings and SLDs Integrated on PLC Platform
- Authors
- Jang-Uk Shin, Su Hwan Oh, Yoon-Jung Park, Sang-Ho Park, Young-Tak Han, Hee Kyung Sung, Kwang Ryong Oh
- Issue Date
- 2007-08
- Citation
- ETRI Journal, v.29, no.4, pp.452-456
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- Very compact 4-channel 200-GHz-spacing external cavity lasers (ECLs) were fabricated by hybrid integration of reflection gratings and superluminescent laser diodes on a planar lightwave circuit chip. The fifth-order gratings as reflection gratings were formed using a conventional contact-mask photo-lithography process to achieve low-cost fabrication. The lasing wavelength of the fabricated ECLs matched the ITU grid with an accuracy of 짹0.1 nm, and optical powers were more than 0.4 mW at the injection current of 80 mA for all channels. The ECLs showed single mode operations with more than 30 dB side lobe suppression.
- KSP Keywords
- External cavity laser, Higher order, Hybrid Integration, ITU grid, Injection current, Laser diode(LD), Planar lightwave circuit(PLC), Reflection gratings, Single mode, lithography process, low-cost fabrication