Title:
改善された空間モードを備えるハイパワーVCSEL
Document Type and Number:
Japanese Patent JP2012511824
Kind Code:
A
Abstract:
The present invention relates to a VCSEL device comprising an optical gain medium (8) arranged between a first DBR (9) and a second DBR (7). The first and the second DBR form a laser cavity and are designed to allow self-contained lasing in the laser cavity, said second DBR (7) being partially transparent for laser radiation resonating in the laser cavity. An optical element is arranged on a side of the second DBR (7) outside of the laser cavity on the optical axis of the laser cavity. The optical element has a concave surface (5) facing the second DBR (7) and being designed to reflect a portion of laser radiation emitted through the second DBR (7) back into the laser cavity. The ratio R/d of the radius of curvature R of the concave surface (5) and the distance d between the concave surface (5) and the gain medium (8) is in the range between 1 and 2. With the proposed VCSEL device a high power output with an improved mode distribution and mode stabilization is achieved.
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Inventors:
Kolbu Johanna S
Mirel michael
Wintertelstein Sebastian
Ernst Uwe
Mirel michael
Wintertelstein Sebastian
Ernst Uwe
Application Number:
JP2011540282A
Publication Date:
May 24, 2012
Filing Date:
December 01, 2009
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H01S5/183
Domestic Patent References:
| JP2006133013A | 2006-05-25 | |||
| JP2006066538A | 2006-03-09 | |||
| JP2005354111A | 2005-12-22 | |||
| JP2002523889A | 2002-07-30 | |||
| JP2003526930A | 2003-09-09 | |||
| JPH1056233A | 1998-02-24 | |||
| JP2006049829A | 2006-02-16 |
Foreign References:
| WO2007050086A1 | 2007-05-03 |
Attorney, Agent or Firm:
Susumu Tsugaru
Fueda Shusen
Fueda Shusen