A self-consistent analysis of DH lasers over the gain-guiding and index-guiding regions

Journal Article · Sat Feb 28 23:00:00 EST 1987 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/JQE.1987.1073336· OSTI ID:6582140

Shimizu, A; Hara, T

Ridge waveguide double heterostructure (DH) lasers are theoretically investigated over the gain-guiding and the index-guiding regions. To determine the lasing mode profiles, the spatial variations of the complex refractive index (the gain-guiding and the anti-index-guiding effects) caused by the distribution of injected carriers, as well as the index-guiding effect due to the ridge waveguide, are self-consistently taken into account. From the self-consistent results for the carrier distribution and the lasing mode profiles, various static properties such as the threshold current, lasing of higher lateral modes, and the astigmatism are obtained as functions of the distance between the active layer and the base of the ridge. The results show a gradual transition from the index-guiding to the gain-guiding regions, and the anti-index-guiding effect is found to play an important role in the latter region.

• Research Organization: Canon Inc. Research Center, Morinosato-Wakamiya 5, Atsugi-City 243-01
• OSTI ID: 6582140
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. QE-23:3; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFICATION
CURRENTS
DISTANCE
ELECTRIC CURRENTS
GAIN
LASERS
LAYERS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
REFRACTIVITY
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SPACE DEPENDENCE
THRESHOLD CURRENT
WAVEGUIDES