PD-LD single-mode laser has free-space version available

The SLM 632.8 single longitudinal mode laser is available in a free-space version or with polarization-maintaining fiber. It has a center wavelength of 632.8 nm, ± 0.5 nm, with output of 20 to 50 mW, typical spectral linewidth of <1 kHz, and wavelength stability over 8 hr of ± 2 pm.PD-LD
Pennington, NJwww.pd-ld.com