Single-frequency optical fiber laser resonant cavity

Single-frequency optical fiber laser resonant cavity

  • CN 102,185,246 B
  • Filed: 03/29/2011
  • Issued: 06/03/2015
  • Est. Priority Date: 03/29/2011
  • Status: Active Grant
First Claim
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1. a single-frequency optical fiber laser resonant cavity, the laser cavity comprising metal derby (6), semiconductor cooler TEC and connected and composed successively by narrow band fiber bragg grating (2), gain fibre (4), band optical fiber grating (5), it is characterized in that, also comprise heat-barrier material seal cover (8), heat insulation orifice plate (7) and metal substrate (9), described metal derby (6) inside is provided with V-type groove, laser cavity is fixed in V-type groove, metal derby (6) is separated three sections by heat-barrier material (3), each section places narrow band fiber bragg grating (2) respectively, gain fibre (4) and band optical fiber grating (5), the heat insulation orifice plate (7) of metal derby (6) below is provided with the hole of placing semiconductor cooler TEC, heat insulation orifice plate (7) is fixed with the metal substrate (9) of below, metal derby (6) encapsulates and forms annular seal space by metal substrate (9) and heat-barrier material seal cover (8), the tail optical fiber of band optical fiber grating (5) and the tail optical fiber (1) of narrow band fiber bragg grating (2) stretch out from annular seal space.

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