Pregled bibliografske jedinice broj: 886153
Minimum temperature sensitivity of 1.55 μm vertical-cavity lasers at −30 nm gain offset
Minimum temperature sensitivity of 1.55 μm vertical-cavity lasers at −30 nm gain offset // Applied physics letters, 72 (1998), 15; 1814-1816 doi:10.1063/1.121318 (međunarodna recenzija, članak, znanstveni)
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Naslov
Minimum temperature sensitivity of 1.55 μm vertical-cavity lasers at −30 nm gain offset
Autori
Piprek, J. ; Akulova, Y.A. ; Babić, Dubravko I. ; Coldren, L.A. ; Bowers, J.E.
Izvornik
Applied physics letters (0003-6951) 72
(1998), 15;
1814-1816
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Temperature ; Mirrors ; Fiber lasers ; Vertical cavity surface emitting lasers ; Optical fiber devices
Sažetak
Double-fused vertical-cavity surface-emitting lasers (VCSELs) have demonstrated the highest temperature performance of any 1.5 μm VCSEL, but further optimization is needed to reduce their temperature sensitivity. We present and analyze threshold current measurements of these devices between −90°C−90 °C and 30 °C stage temperature. Despite a zero gain peak offset from the emission wavelength at room temperature, the pulsed threshold current has its minimum near −50°C−50 °C corresponding to about −30nm−30 nm gain offset. This is in contrast to a common VCSEL design rule. Temperature effects on the optical gain of the strain-compensated InGaAsP/InP active region are found to be the main cause for the disagreement. A design rule modification is proposed. Numerical simulation of an optimized 1.55 μm VCSEL shows that gain offset improvements are counteracted by loss mechanisms.
Izvorni jezik
Engleski
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
