Room-temperature operation of photopumped monolithic InP vertical-cavity laser with two air-gap Bragg reflectors
We demonstrate a long wavelength ({lambda}=1.56{mu}m) vertical-cavity laser built on a low-loss resonator formed by two InP/air-gap Bragg reflectors. The monolithic, InP-based structure uses a periodic gain active region with six strain-compensated quantum wells. The photopumped vertical-cavity laser requires record low power density of only 370 W/cm2 to reach threshold at 25{degree}C. The equivalent threshold current density is estimated to be as low as 400 A/cm2. Continuous-wave operation is demonstrated up to 32{degree}C despite the low heat conductivity of the reflectors. The emission is single mode and a power of up to 110 {mu}W has been coupled into a single-mode fiber. {copyright} 2001 American Institute of Physics.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40204514
- Journal Information:
- Applied Physics Letters, Vol. 78, Issue 25; Other Information: DOI: 10.1063/1.1379983; Othernumber: APPLAB000078000025003935000001; 017125APL; PBD: 18 Jun 2001; ISSN 0003-6951
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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