Q-switching-induced gain-switched erbium pulse laser system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8964799
APP PUB NO 20130016422A1
SERIAL NO

13547291

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention relates to a Q-switching-induced gain-switched erbium pulse laser system, capable of generating erbium laser pulses within the 2.5 μm to 3.0 μm wavelength region, by means of Q-switching operation at 1.6 μm. At first, an Er3+-doped gain medium is pumped and Q-switched at the wavelength region from 1.58 μm to 1.62 μm, so that a Q-switched pulse is formed from the Er3+-doped gain medium. The Q-switched pulse results in an instant positive population inversion between the levels 4I11/2 and 4I13/2 of the Er3+-doped gain medium, followed by a gain-switched laser pulse at the wavelength region from 2.5 μm to 3.0 μm.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
NATIONAL CHENG KUNG UNIVERSITYTAINAN CITY340

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tsai, Tzong-Yow Tainan, TW 5 4

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 7633990 Multi-wavelength pump method for improving performance of erbium-based lasers 2 2007
 
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
 
TILLEMAN, MICHAEL (1)
* 2007/0100,330 Surgical laser systems for soft and hard tissue and methods of use thereof 6 2006
 
SCIENCE & TECHNOLOGY CORPORATION @ UNM (2)
* 6510276 Highly doped fiber lasers and amplifiers 16 1999
* 6360040 Method for coupling of laser beams into waveguides 3 2000
 
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (1)
* 2012/0147,909 FIBER LASER SYSTEM 3 2011
 
PHARMALASE CORP (1)
* 2006/0007,965 Passive Q-switch modulated fiber laser 12 2004
 
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (1)
* 2006/0198,399 Optical pulse lasers 12 2003
 
OL SECURITY LIMITED LIABILITY COMPANY (2)
* 6891878 Eye-safe solid state laser system and method 5 2003
* 2004/0218,652 Eye-safe solid state laser system and method 3 2003
 
NORTHROP GRUMMAN SYSTEMS CORPORATION (1)
* 5675594 Compact laser apparatus 8 1996
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

  • No Forward Cites to Display

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Aug 24, 2018
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 24, 2022
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 24, 2026
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00