“Multi-Watt Broadband Wavelength Tunable Polarization Maintaining Tm-doped Fiber Laser Module,” Clement Guyonnet, Alexandre Amavigan, Wiktor Walasik, Robert E. Tench, Jean-Marc Delavaux, Thierry Robin, Benoit Cadier, Arnaud Laurent, and Patrice Crochet, Proc. SPIE 11665, Fiber Lasers XVIII:Technology and Systems, 1166524 (5 March 2021).