Continuous-wave organic thin-film distributed feedback laser and electrically driven organic semiconductor laser diode
AssigneesKyushu University, National University Corporation, Koala Tech Inc.
InventorsChihaya Adachi, Sangarange Don Atula Sandanayaka, Toshinori Matsushima, Kou Yoshida, Jean-Charles Ribierre, Fatima Bencheikh, Kenichi Goushi, Takashi Fujihara
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Abstract
Disclosed are a current excitation type organic semiconductor laser containing a pair of electrodes, an organic laser active layer and an optical resonator structure between the pair of electrodes and a laser having an organic layer on a distributed feedback grating structure. The lasers include a continuous-wave laser, a quasi-continuous-wave laser and an electrically driven semiconductor laser diode.
Claims45
A current excitation type organic semiconductor laser containing two electrodes, an organic optical gain layer and an optical resonator structure wherein:
- the organic optical gain layer and the optical resonator structure are formed between the two electrodes,
- the optical resonator has a DFB grating structure,
- the DFB grating structure is composed of an insulating material, and
- the DFB grating structure is between one of the electrodes and the organic optical gain layer.
A laser having an organic layer on a DFB grating structure, wherein
- the organic layer contains an organic gain medium,
- the DFB grating structure is composed of an insulating material formed on a transparent conductive layer, and
- the DFB grating structure is between the transparent conductive layer and the organic layer, and
- light emits from a side of the transparent conductive layer opposite to the DFB grating structure.
A laser having an organic layer on a DFB grating structure, wherein the organic layer contains an organic gain medium, the DFB grating structure is composed of an insulating material formed on a transparent conductive layer, and the organic layer is directly or indirectly covered with sapphire, and light emits from a side of the transparent conductive layer opposite to the DFB grating structure.
Dependencies are inferred from the claim text.