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Nonresonant self-injection seeding of a gain-switched diode laser

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4 Author(s)
Rafailov, E.U. ; Sch. of Phys. & Astron., St. Andrews Univ., UK ; Birkin, D.J.L. ; Sibbett, W. ; Avrutin, E.A.

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

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:7 ,  Issue: 2 )