Patent
Semiconductor laser array
Mitsuaki Futami,Yuki Hasegawa,Toru Yoshihara,Shinji Yagyu,Tetsuya Nishimura +4 more
- 05 Dec 2014
5
TL;DR: In this paper, a semiconductor laser array of the present invention is disposed such that waveguides of the laser elements are parallel to one another and each of the plurality of laser elements includes a front-end-surface reflection film on a front end surface serving as a light emitting surface of the waveguide.
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Abstract: In a semiconductor laser array of the present invention, a plurality of laser elements (first to fifth laser elements) are disposed such that waveguides of the laser elements are parallel to one another, each of the plurality of laser elements includes a front-end-surface reflection film on a front end surface serving as a light emitting surface of the waveguide, each of the plurality of laser elements includes a rear-end-surface reflection film on a rear end surface opposite to the front end surface with the waveguide sandwiched between the front end surface and the rear end surface, the front-end-surface reflection films of at least two of the plurality of laser elements have different reflectances, the rear-end-surface reflection films of the plurality of laser elements have the same reflectance, and the plurality of laser elements are driven by a single power supply.
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Citations
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References
Patent
Semiconductor laser array device
Mototaka Taneya,Sadayoshi Matsui,Mitsuhiro Matsumoto,Saburo Yamamoto,Seiki Yano +4 more
- 05 Aug 1986
TL;DR: In this article, a semiconductor laser array device comprising an oscillation operating area provided with a plurality of first index-waveguides in a parallel manner and a non-oscillation operating area providing with an additional plurality of second index waveguides is presented, where the end facet of each of the second waveguide does not function as a cavity facet of the laser but functions as the light-emitting facet.
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Patent
Multi-wavelength laser device
Toshiyuki Kawakami,Mototaka Taneya +1 more
- 27 Feb 2004
TL;DR: A multi-wavelength laser device includes at least two of a blue laser diode, a red laser dode, and an infrared diode which are arranged in the same direction on the same base.
93
Patent
Laser package having multiple emitters with color wheel
James W. Raring,Paul Rudy,Chendong Bai +2 more
- 04 Apr 2012
TL;DR: In this paper, a method and devices for emitting electromagnetic radiation at high power using nonpolar or semipolar gallium containing substrates such as GaN, AlN, InN,
60
Patent
Laser diode array and fabrication method thereof
Koji Kudo,Masayuki Yamaguchi,Hiroyuki Yamazaki +2 more
- 08 Oct 1997
TL;DR: In this article, the first to n-th single-axial-mode (SOM) LDs are arranged on a semiconductor substrate, where n ≥ 2 and the (k+1)-th period is equal to a sum of the k-th period and an increment, where 1≦k S (n-1).
43
Patent
Semiconductor laser array and its manufacturing method, optical integrated unit and optical pickup
Ichiro Uchisaki,Kazushige Mori,Hideo Shiozawa +2 more
- 25 Jun 1999
TL;DR: In this article, a semiconductor laser array including a plurality of index-guided semiconductor lasers different in oscillation wavelength is made by collectively controlling their double transverse modes and collectively processing them to form their current blocking structures and buried layers.
37
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