Criterion for improved linearity of 1.3-µm InGaAsP-InP buried-heterostructure lasers

Dutta, Niloy K.; Nelson, R. J.; Wright, P. D.; Craft, D. C.

doi:10.1109/jlt.1984.1073584

Cited by 6 publications

(1 citation statement)

References 7 publications

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“…Spatial hole burning causes transverse mode transitions with in creasing injection in strongly index-guided lasers. 44 These mode tran sitions appear as "kinks" in the L-I characteristics and are undesirable for lightwave applications. Spatial hole burning can be reduced and the L-I kinks eliminated by reducing the active area of the laser to less than ~0.3 μπι 2 for lasers emitting at 1.3 μπι 44 and ~0.2 μπι 2 for lasers emitting at 1.55 μπι.…”

Section: The Variation Of Threshold Current (J T H) With Temperature mentioning

confidence: 99%

Performance Comparison of InGaAsP Lasers Emitting at 1.3 and 1.55 μm for Lightwave System Applications

Dutta

Wilson²,

Wilt

et al. 1985

At&T Technical Journal

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Experimental results relative to the performances of real index-guided InGaAsP lasers emitting near 1.3 and 1.55 μΐη are described and compared. The laser structures discussed are the etched mesa buried heterostructure, channeled substrate buried heterostructure, and the double channel planar buried heterostructure. The effect of Auger recombination and intervalence band absorption on the threshold current and external differential quantum efficiency is discussed. The effect of the larger Auger coefficient at 1.55 μπι is compensated by a lower carrier density at threshold at 1.55 μπι so that the total nonradiative current loss for lasers emitting at 1.55 μπι is not significantly larger than that for lasers emitting at 1.3 μΐη. A small linear shunt leakage current (~10 mA) can increase the T 0 to ~100K. We report threshold currents as low as 11 and 15 mA (at 30°C) and continuous-wave operating temperatures as high as 130 and 110°C for lasers emitting at 1.3 and 1.55 μηι, respectively.

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Section: The Variation Of Threshold Current (J T H) With Temperature mentioning

confidence: 99%