Abstract
Injection locking is shown to greatly enhance the resonance frequency of 1.55 μm vertical-cavity surface-emitting lasers (VCSELs), from 10 to 60 GHz, under ultrahigh injection locking conditions. Using injection locking to increase the laser resonance frequency, together with a low parasitic VCSEL design, a 3 dB bandwidth of over 40 GHz was attained, a record broadband performance for directly modulated VCSELs. VCSELs with slightly detuned polarization modes are injection locked with controlled polarization angles. For the first time, a dual-resonance frequency response is observed, and is explained with a two polarization-mode injection-locked rate equation model. © 2007 IEEE.
| Original language | English |
|---|---|
| Title of host publication | IEEE Journal on Selected Topics in Quantum Electronics |
| Pages | 1200-1208 |
| Number of pages | 9 |
| Volume | 13 |
| Edition | 5 |
| DOIs | |
| State | Published - Sep 1 2007 |
| Externally published | Yes |
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