17 February 2010 High-brightness 9XXnm pumps with wavelength stabilization
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Abstract
Further acceptance and fiber lasers and direct diode systems commercial success greatly depend on diodes' availability and cost ($/W). These two parameters should not compromise pumps' performance and reliability. We report on two high-brightness CW devices: high-power module launching over 100W and a pump capable of launching 50W of wavelength-stabilized emission. Devices are based on a single emitter platform and utilize a 105 μm core diameter fiber; radiation is confined within NA<0.13 in both designs. These hermetically sealed modules require passive cooling and are designed to operate with ≤ 30°C diodes' junction overheat. CW peak power efficiency is higher than 55% for both devices. The 25-30dB isolation option (feedback protection at 10XX-nm) is optional in either package. Modules have the industry's smallest footprint and are perfectly suited to serve pumping fiber lasers and direct materials processing markets.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
V. Gapontsev, N. Moshegov, P. Trubenko, A. Komissarov, I. Berishev, O. Raisky, N. Strougov, V. Chuyanov, O. Maksimov, A. Ovtchinnikov, "High-brightness 9XXnm pumps with wavelength stabilization", Proc. SPIE 7583, High-Power Diode Laser Technology and Applications VIII, 75830A (17 February 2010); doi: 10.1117/12.840940; https://doi.org/10.1117/12.840940
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