Short-wavelength (638 nm) room-temperature CW operation of InGaAlP laser diodes with quaternary active layer

1990 ◽  
Vol 26 (3) ◽  
pp. 211 ◽  
Author(s):  
M. Ishikawa ◽  
H. Shiozawa ◽  
Y. Tsuburai ◽  
Y. Uematsu
2000 ◽  
Vol 5 (S1) ◽  
pp. 1-7 ◽  
Author(s):  
Masayoshi Koike ◽  
Shiro Yamasaki ◽  
Yuta Tezen ◽  
Seiji Nagai ◽  
Sho Iwayama ◽  
...  

GaN-based short wavelength laser diodes are the most promising key device for a digital versatile disk. We have been improving the important points of the laser diodes in terms of optical guiding layers, mirror facets. The continuous wave laser irradiation at room temperature could be achieved successfully by reducing the threshold current to 60 mA (4 kA/cm2). We have tried to apply the multi low temperature buffer layers to the laser diodes for the first time to reduce the crystal defects.


1985 ◽  
Vol 24 (Part 2, No. 12) ◽  
pp. L911-L913 ◽  
Author(s):  
Hidetoshi Iwamura ◽  
Tadashi Saku ◽  
Yoshiro Hirayama ◽  
Yoshifumi Suzuki ◽  
Hiroshi Okamoto

Author(s):  
Marta Rio Calvo ◽  
Jean Baptiste Rodriguez ◽  
Laurent Cerutti ◽  
Laura Monge Bartolome ◽  
Michael Bahriz ◽  
...  

1985 ◽  
Vol 21 (24) ◽  
pp. 1162 ◽  
Author(s):  
K. Kobayashi ◽  
S. Kawata ◽  
A. Gomyo ◽  
I. Hino ◽  
T. Suzuki

1991 ◽  
Vol 27 (18) ◽  
pp. 1660 ◽  
Author(s):  
K. Nitta ◽  
K. Itaya ◽  
Y. Nishikawa ◽  
M. Ishikawa ◽  
M. Okajima ◽  
...  

1994 ◽  
Vol 339 ◽  
Author(s):  
I. Akasaki ◽  
H. Amano

ABSTRACTHigh-quality AlGaN/GaN and AlGaN/GalnN DHs were fabricated by MOVPE using low-temperature deposited AlN buffer layer. We applied the newly designed dual-flow-channel reactor, by which high-quality and well-controlled AlGaN and GalnN alloys and their heterostructures have been grown. AlGaN/GaN-DH shows low-threshold stimulated emission by optical pumping at room temperature for both edge and surface modes. The peak wavelength of stimulated emission for edge mode was 369.5nm. The peak wavelength of stimulated emission was affected by the strain due to heterostructure as well as the many body effect under high excitation. The wavelength for stimulated emission can be widely changed by using GalnN as the active layer. AlGaN/GalnN DH with InN molar fraction of the active layer of 0.09 shows room temperature low-threshold stimulated emission for edge mode by optical pumping with peak wavelength of 402.5nm. A few mW-class symmetrical AlGaN/GaN DH LED and anti symmetrical AlGaN/GalnN/GaN DH LED using low energy electron beam irradiation (LEEB1) treated Mg-doped P-AlGaN cladding layer were fabricated. These results show that column-Ill nitrides are promising for the realization of practical short wavelength LED and LD.


1998 ◽  
Vol 34 (5) ◽  
pp. 496 ◽  
Author(s):  
F. Nakanishi ◽  
H. Doi ◽  
N. Okuda ◽  
T. Matsuoka ◽  
K. Katayama ◽  
...  

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