6533b856fe1ef96bd12b268d
RESEARCH PRODUCT
Tunable narrowband fiber laser with feedback based on whispering gallery mode resonances of a cylindrical microresonator.
E Rivera-pérezMiguel V. AndrésJose L. CruzAntonio DiezA. Rodriguez-cobossubject
Distributed feedback laserMaterials sciencebusiness.industryPhysics::OpticsInjection seederLaserAtomic and Molecular Physics and Opticslaw.inventionLaser linewidthOpticslawOptical cavityFiber laserPhysics::Atomic PhysicsWhispering-gallery wavebusinessTunable laserdescription
Narrowband filtering based on whispering gallery modes of a slightly tapered cylindrical optical microresonator was used to implement a tunable narrowband erbium-doped fiber laser. The laser can be set to emit a single longitudinal cavity mode (single frequency), although the laser cavity is a few meters long. In the single-frequency regime the laser can emit a maximum power of 0.380 mW with a linewidth <35 kHz and a signal-to-noise ratio exceeding 50 dB. Tunability is achieved by sliding the excitation point along the microcylinder. A tuning range of 1.16 nm is demonstrated.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-08-14 | Optics letters |