## Miniaturized Tunable External Cavity Diode Laser with Single-Mode Operation and a Narrow Linewidth at 633 nm

• Bawamia A
• Blume G
• Eppich B
et al.
• 6

• 11

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#### Abstract

A miniaturized, standalone tunable semiconductor laser module operating at a wavelength of 633 nm with a footprint as small as 10 mm $\times$ 5 mm is presented. The module is based on an external cavity diode laser system with no moving parts and features a frequency tuning range of 25 GHz with a spectral linewidth of approximately 10 MHz. An output power of 10 mW within a nearly diffraction-limited beam is demonstrated. The electrical power consumption, including thermal management, is around 0.7 W.

#### Author-supplied keywords

• Absolute distance interferometry
• external cavity diode laser (ECDL)
• micro optical bench
• tunable diode laser

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