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2. Distributed Bragg reflector laser - Wikipedia

   en.wikipedia.org/wiki/Distributed_Bragg...

   A distributed Bragg reflector laser (DBR) is a type of single frequency laser diode. Other practical types of single frequency laser diodes include DFB lasers and external cavity diode lasers. A fourth type, the cleaved-coupled-cavity laser has not proven to be commercially viable.

3. Distributed Bragg reflector - Wikipedia

   en.wikipedia.org/wiki/Distributed_Bragg_reflector

   Distributed Bragg reflectors are critical components in vertical cavity surface emitting lasers and other types of narrow-linewidth laser diodes such as distributed feedback (DFB) lasers and distributed bragg reflector (DBR) lasers. They are also used to form the cavity resonator (or optical cavity) in fiber lasers and free electron lasers.

4. Distributed-feedback laser - Wikipedia

   en.wikipedia.org/wiki/Distributed-feedback_laser

   A distributed-feedback laser (DFB) is a type of laser diode, quantum-cascade laser or optical-fiber laser where the active region of the device contains a periodically structured element or diffraction grating. The structure builds a one-dimensional interference grating (Bragg scattering), and the grating provides optical feedback for the

5. Laser diode - Wikipedia

   en.wikipedia.org/wiki/Laser_diode

   A distributed Bragg reflector laser (DBR) is a type of single-frequency laser diode. [11] It is characterized by an optical cavity consisting of an electrically or optically pumped gain region between two mirrors to provide feedback. One of the mirrors is a broadband reflector and the other mirror is wavelength selective so that gain is favored ...

6. Fiber Bragg grating - Wikipedia

   en.wikipedia.org/wiki/Fiber_Bragg_grating

   A fiber Bragg grating (FBG) is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths of light and transmits all others. This is achieved by creating a periodic variation in the refractive index of the fiber core, which generates a wavelength-specific dielectric mirror .

7. Vertical-cavity surface-emitting laser - Wikipedia

   en.wikipedia.org/wiki/Vertical-cavity_surface...

   A realistic VCSEL device structure. This is a bottom-emitting multiple-quantum-well VCSEL.. The laser resonator consists of two distributed Bragg reflector (DBR) mirrors parallel to the wafer surface with an active region consisting of one or more quantum wells for the laser light generation in between.

8. Polariton laser - Wikipedia

   en.wikipedia.org/wiki/Polariton_laser

   Thus, it is a coherent light source that owns a different working mechanism compared to conventional laser devices. Owing to its principle, a polariton-laser promises a more energy-efficient laser operation. The typical semiconductor structure for such a laser consists of an optical microcavity placed between distributed Bragg reflectors.

9. Semiconductor saturable-absorber mirror - Wikipedia

   en.wikipedia.org/wiki/Semiconductor_saturable...

   Semiconductor saturable absorbers were used for laser mode-locking as early as 1974 when p-type germanium was used to mode lock a CO 2 laser which generated pulses of around 500 picoseconds. Modern SESAMs are III-V semiconductor single quantum well (SQW) or multiple quantum wells grown on semiconductor distributed Bragg reflectors (DBRs).