NDLI: Highly reliable and mode-stabilized (GaAl)As double-heterostructure visible lasers on p-GaAs substrate

Content Provider	IEEE Xplore Digital Library
Author	Hayakawa, T. Yamamoto, S. Hayashi, H. Ohtsuka, N. Murata, K. Takagi, J. Sakurai, T. Hijikata, T.
Copyright Year	1981
Description	Author affiliation: Sharp Corporation, Nara, Japan (Hayakawa, T.)
Abstract	A new channeled-substrate (GaAl)As double-heterostructure (DH) visible laser on p-GaAs, called a V-channeled Substrate Inner Stripe (VSIS) laser, has been developed. A built-in optical waveguide and internal current confinement are realized in the structure. The lasers with emission wavelength of 760-790 nm reproducibly provide a single mode operation up to 20 mW/facet cw. For (GaAl)As visible lasers, Te is usually used as a dopant in the n-type cladding layer. This Te, however, is found to lower the reliability of the conventional oxide-stripe lasers where the active layer is deposited on the Te doped n-type cladding layer, even when the Te concentration is lower than 5 × $10^{17}cm^{-3}.$ On the other hand, the n-type cladding layer is grown on the active layer in the VSIS laser. Consequently, the degradation which arises from the rather poor quality of the Te doped cladding layer is suppressed in the VSIS laser although the Te concentration is as high as 1 × $10^{18}cm^{-3}.$ The VSIS lasers with\lambda \sim 770nm have been continuously operating with almost no degradation for 2000 hours at 10 mW/ facet (5 mW/µ m) operation at 50 °C up to the present.
Starting Page	443
Ending Page	446
File Size	446380
Page Count	4
File Format	PDF
DOI	10.1109/IEDM.1981.190110
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1981-12-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laser modes Tellurium Substrates Waveguide lasers Surface emitting lasers Degradation Semiconductor lasers Threshold current DH-HEMTs Optical waveguides
Content Type	Text
Resource Type	Article

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