Photo-pumped semiconductor optical amplifier
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United States of America Patent
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Apr 30, 2013
Grant Date -
Jul 21, 2011
app pub date -
Jan 20, 2010
filing date -
Jan 20, 2010
priority date (Note) -
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Abstract
An edge photo-pumped semiconductor slab amplifier including an undoped semiconductor slab. A first gain structure is formed on an upper surface of the slab and a second gain structure is formed on a lower surface of the slab. The gain structures can be resonant periodic gain structures including a plurality of stacked quantum well layers. Confining layers are coupled to the gain structures to confine a signal beam within the semiconductor slab. Heat sinks are thermally coupled to the confining layers. Optical pump sources are provided along the side edges or coupled to the end edges of the slab so that pump light is introduced into the slab through the edges to provide gain for the quantum well layers.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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NORTHROP GRUMMAN SYSTEMS CORPORATION | 2980 FAIRVIEW PARK DRIVE FALLS CHURCH VA 22042-4511 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Kunkee, Elizabeth Twyford | Manhattan Beach, US | 4 | 7 |
# of filed Patents : 4 Total Citations : 7 | |||
Rice, Robert Rex | Simi Valley, US | 28 | 294 |
# of filed Patents : 28 Total Citations : 294 | |||
Schulte, Derek Evan | Playa Del Rey, US | 2 | 0 |
# of filed Patents : 2 Total Citations : 0 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
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Legal Events
Date | Code | Event | Description |
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Dec 20, 2018 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 12 |
Dec 10, 2014 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Dec 03, 2010 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Jul 03, 2007 | I | Issuance | |
Jun 13, 2007 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 30, 2007 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUJIFILM HOLDINGS CORPORATION (FORMERLY FUJI PHOTO FILM CO., LTD.);REEL/FRAME:018904/0001 Owner name: FUJIFILM CORPORATION, JAPAN Effective Date: Jan 30, 2007 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUJIFILM HOLDINGS CORPORATION (FORMERLY FUJI PHOTO FILM CO., LTD.);REEL/FRAME:018904/0001 Owner name: FUJIFILM CORPORATION,JAPAN Effective Date: Jan 30, 2007 |
Sep 16, 2004 | P | Published | |
Mar 12, 2004 | F | Filing | |
Mar 10, 2004 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OHSHIMA, NAOTO;SATO, TADANOBU;INABA, TADASHI;REEL/FRAME:015086/0836 Owner name: FUJI PHOTO FILM CO., LTD., JAPAN Effective Date: Mar 10, 2004 |
Mar 13, 2003 | PD | Priority Date |

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