Broadly tunable (440-670 nm) solid-state organic laser with disposable capsules

Oussama Mhibik (1) , Tatiana Leang (1) , Alain Siove (1) , Sebastien Forget (1) , Sébastien Chenais (1)

1 LPL - Laboratoire de Physique des Lasers

An innovative concept of thin-film organic solid-state laser is proposed, with diffraction-limited output and a broad tuning range covering the visible spectrum under UV optical pumping. The laser beam is tunable over 230 nm, from 440 to 670 nm, with a 3 nm full width at half maximum typical spectral width. The structure consists of a compact fixed bulk optical cavity, a polymeric intracavity etalon for wavelength tuning, as well as five different disposable glass slides coated with a dye-doped polymer film, forming a very simple and low-cost gain medium. The use of interchangeable/disposable "gain capsules" is an alternative solution to photodegradation issues, since gain chips can be replaced without realignment of the cavity. The laser lifetime of a single chip in ambient conditions and without encapsulation was extrapolated to be around 107 pulses at a microjoule energy-per-pulse level.

Domaines: Optique [physics.optics]

Oussama Mhibik, Tatiana Leang, Alain Siove, Sebastien Forget, Sébastien Chenais. Broadly tunable (440-670 nm) solid-state organic laser with disposable capsules. Applied Physics Letters, 2013, 102, pp.041112. ⟨10.1063/1.4790294⟩. ⟨hal-00988350⟩