350mW 638nm Stabilized Diode Lasers

The TO-56 & 14-Pin Butterfly packaged, base product lines come standard with a circularized and collimated open output beam, internal thermistor, and ESD protection, while the 14-Pin Butterfly package can also be fiber-coupled (expect ≈ 50% power loss from base values with fiber-coupling). Utilizing a hybrid external-cavity laser design, based on volume Bragg grating (VGB) technology, we ensure extremely narrowband (≈ 100kHz) output, with a precisely defined center wavelength and a very low sensitivity to temperature changes. Lasing wavelength can be accurately specified and repeatedly manufactured to within +/-0.1 nm upon request. The FC638DL350 also provides an excellent side mode suppression ratio (SMSR), which is typically between 35-45 dB.