Semiconductor saturable absorber mirror

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6538298
SERIAL NO

10016530

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A 'low field enhancement' (LFR) semiconductor saturable absorber device design in which the structure is changed such that it has a resonant condition. Consequently, the field strength is substantially higher in the spacer layer, resulting in a smaller saturation fluence and in a higher modulation depth. However, the field in the spacer layer is still lower than the free space field or only moderately enhanced compared to the field in the free space. According to one embodiment, the absorber device is a Semiconductor Saturable Absorber Mirror (SESAM) device. In contrast with SESAMs according to the state of the art, a structure including the absorber and being placed on top of a Bragg reflector is provided, which essentially fulfills a resonance condition whereby a standing electromagnetic wave is present in the structure. In other words, the design is such that the field intensity reaches a local maximum in the vicinity of the device surface.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
LUMENTUM SWITZERLAND AGSCHLIEREN, CH16

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Keller, Ursula Zurich, CH 20 266
Krainer, Lukas Zurich, CH 4 66
Spuehler, Gabriel J Zurich, CH 5 91
Weingarten, Kurt Zurich, CH 8 120

Cited Art Landscape

Patent Info (Count) # Cites Year
 
TIME-BANDWITH PRODUCTS AG (1)
* 5987049 Mode locked solid-state laser pumped by a non-diffraction-limited pumping source and method for generating pulsed laser radiation by pumping with a non-diffraction-limited pumping beam 39 1998
 
LUCENT TECHNOLOGIES INC. (3)
* 5627854 Saturable bragg reflector 32 1995
* 5701327 Saturable Bragg reflector structure and process for fabricating the same 17 1996
* 6141359 Modelocking laser including self-tuning intensity-dependent reflector for self-starting and stable operation 10 1998
 
LUMENTUM SWITZERLAND AG (1)
* 6393035 High-repetition rate passively mode-locked solid-state laser 41 1999
 
The United States of America as represented by the Secretary of the Navy (1)
* 5802084 Generation of high power optical pulses using flared mode-locked semiconductor lasers and optical amplifiers 33 1994
 
BELL TELEPHONE LABORATORIES, INCORPORATED (1)
* 4435809 Passively mode locked laser having a saturable absorber 22 1981
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2002/0159,496 Laser with gain medium configured to provide an integrated optical pump cavity 0 2002
 
LUMENTUM SWITZERLAND AG (1)
* 6826219 Semiconductor saturable absorber device, and laser 4 2002
 
INTEL CORPORATION (1)
* 7170915 Anti-reflective (AR) coating for high index gain media 23 2003
 
BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. (2)
* 7203209 System and method for a passively Q-switched, resonantly pumped, erbium-doped crystalline laser 18 2005
* 2006/0159,132 System and method for a passively Q-switched, resonantly pumped, erbium-doped crystalline laser 4 2005
 
UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC. (1)
7590156 High intensity MHz mode-locked laser 6 2005
 
ELECTRO SCIENTIFIC INDUSTRIES, INC. (5)
7982160 Photonic clock stabilized laser comb processing 4 2008
* 2009/0242,531 PHOTONIC CLOCK STABILIZED LASER COMB PROCESSING 8 2008
8178818 Photonic milling using dynamic beam arrays 3 2008
* 2009/0242,522 PHOTONIC MILLING USING DYNAMIC BEAM ARRAYS 11 2008
8358671 Photonic clock stabilized laser comb processing 0 2011
 
IMRA AMERICA, INC. (1)
* 2006/0029,110 Cavity monitoring device for pulse laser 5 2004
 
REFLEKRON OY (2)
* 8179943 Semiconductor saturable absorber reflector and method to fabricate thereof 2 2005
* 2009/0296,767 Semiconductor Saturable Absorber Reflector and Method to Fabricate Thereof 1 2005
 
RAYTHEON COMPANY (1)
* 6834067 Laser with gain medium configured to provide an integrated optical pump cavity 1 2002
* Cited By Examiner