Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Ryozaburo Nogawa"'
Autor:
Rintaro Morohashi, Masayuki Yamaguchi, Yuji Yamagata, Kyohei Yoshida, Yoshikazu Kaifuchi, Ryozaburo Nogawa
Publikováno v:
High-Power Diode Laser Technology XVIII.
We report the highest power conversion efficiency (PCE) of 74.6% at peak and more than 70% PCE maintained up to high output power of 20W in broad stripe laser diodes (LDs) lasing at a 9xx-nm band. Optimal layer structure design including enhancement
Autor:
Yoshikazu Kaifuchi, Yuji Yamagata, Masayuki Yamaguchi, Ryozaburo Nogawa, Yumi Yamada, Kyohei Yoshida
Publikováno v:
High-Power Diode Laser Technology XVII.
Design optimization of single emitter broad stripe 900-nm laser diodes was experimentally studied to achieve high power conversion efficiency (PCE) for a use in fiber laser systems. We chose two approaches for PCE improvement. The first is an optical
Autor:
Rintaro Morohashi, Ryozaburo Nogawa, Yumi Yamada, Masayuki Yamaguchi, Yoshikazu Kaifuchi, Yuji Yamagata, Katsuhisa Tada
Publikováno v:
High-Power Diode Laser Technology XVI.
Polarization characteristics of self-aligned stripe (SAS) laser diodes (LDs) and Ridge-LDs are investigated to realize highly efficient polarization beam combined (PBC) LD modules. Vertical layers of both lasers are designed identically. Near field p
Autor:
Yoshikazu Kaifuchi, Rintaro Morohashi, Ryozaburo Nogawa, Yumi Yamada, Yuji Yamagata, Masayuki Yamaguchi
Publikováno v:
High-Power Diode Laser Technology XV.
Design optimization of single emitter broad stripe 9xx-nm laser diodes was studied to achieve ultimate high power and high efficiency operation for a use in fiber laser pumping and other industrial applications. We tuned laser vertical layer design a
Autor:
Yoshikazu Kaifuchi, Kyohei Yoshida, Yuji Yamagata, Ryozaburo Nogawa, Yumi Yamada, Masayuki Yamaguchi
Publikováno v:
Proceedings of SPIE; 11/24/2018, Vol. 10900, p1-6, 6p
Autor:
Rintaro Morohashi, Yoshikazu Kaifuchi, Ryozaburo Nogawa, Yuji Yamagata, Masayuki Yamaguchi, Y. Yamada
Publikováno v:
2015 IEEE High Power Diode Lasers and Systems Conference (HPD).
High-power and high-reliability single emitter laser diodes with 8xx-9xx nm lasing wavelength based on Asymmetric Decoupled Confinement Heterostructure (ADCH) are demonstrated. Laser structure optimization in vertical layer design and stripe width en
Autor:
Masayuki Yamaguchi, Ryozaburo Nogawa, Yuji Yamagata, Akira Sakamoto, Yumi Yamada, Syunta Sato, Masanori Muto
Publikováno v:
High-Power Diode Laser Technology and Applications XIII.
915nm high-power and high-reliability single emitter laser diodes based on Asymmetric Decoupled Confinement Heterostructure (ADCH) are demonstrated. Advantage of ADCH is that it can optimize active layer confinement () and confinement ratio of p-
Autor:
Rintaro Morohashi, Yuji Yamagata, Yoshikazu Kaifuchi, Katsuhisa Tada, Ryozaburo Nogawa, Yumi Yamada, Masayuki Yamaguchi
Publikováno v:
Proceedings of SPIE; 10/17/2017, Vol. 10514, p1-6, 6p