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Detail
Journal Article
Nonuniform Output Characteristics of Laser Diode with Wet-etched Spot-size Converter
- Authors
- Joong-Seon Choe, Yong-Hwan Kwon, Sung-Bock Kim, Jung Jin Ju
- Issue Date
- 2008-04
- Citation
- Optics Express, v.16, no.8, pp.5790-5796
- ISSN
- 1094-4087
- Publisher
- Optical Society of America(OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- We study the output characteristics of spot-size converter (SSC) integrated buried heterostructure (BH) laser diode (LD) by forming SSC with wet etching process. SSC-LD shows large chip-to-chip variation in threshold current(I th) and slope efficiency (ηaslope) compared to LD without SSC. Ith and ηslope are closely related with each other so that the front facet aslope increases while the rear facet ηslope decreases with Ith. Far-field angle is also found to be proportional to the front facet ηslope. The trends observed are explained clearly by a unidirectional loss occurring when photons travel from the front to rear facet. © 2008 Optical Society of America.
- KSP Keywords
- Buried heterostructure (BH) laser, Far-field, Field angle, Large chip, Laser diode(LD), Slope efficiency, Spot size converter(SSC), Threshold current, Wet etching process, chip-to-chip, output characteristics
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
