Answers are grounded in this paper and cite their sources.
We demonstrate step-tunable single-mode operation of a gain-switched diode laser by nonresonant self-injection seeding from an uncoated glass slide used as an external cavity reflector. A spectral bandwidth reduction from 11 nm to 0.05 nm and wavelength tunability has been achieved for picosecond (near-transform-limited) pulses with little effect on other laser characteristics. Good agreement with numerical simulations based on a compound-cavity laser model is also reported.
No takes yet. Share an insight, caveat, or question.
Rafailov et al. (2001) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: