22 April 2016 Blue-emitting external cavity laser diode
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An front facet anti-reflection coated solitary laser diode is operated in the external cavity diode laser (ECDL). For wavelength stabilization and narrow spectral width, the diffraction grating is used in a Littrow configuration. At an injection current of 280 mA, a output power of 35mW with a slope efficiency of 0.22 W/A and the bandwidth of 80 pm at a wavelength of 457 nm. In this paper, the tunable external cavity diode laser module is designed with an overall size of 18 mm x 24 mm x 14 mm. ECDL showed excellent wavelength locking behavior without a non-shift of the peak wavelength.
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Hong Man Na, Hong Joo Song, Jong Hwan Park, Jun Ho Lee, Jung Ho Park, "Blue-emitting external cavity laser diode", Proc. SPIE 9730, Components and Packaging for Laser Systems II, 97300A (22 April 2016); doi: 10.1117/12.2214017; https://doi.org/10.1117/12.2214017

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