Mode-locked fiber laser
This patent describes a mode-locked fiber laser. It comprises a pump source, a linear laser cavity including a single mode doped optical fiber, the cavity having a first end defined by an output coupler, the output coupler being partially transmissive at the laser output wavelength, and having a second end defined by a dichroic mirror having a high reflectivity at the laser output wavelength and a high transmissibility at the wavelength of radiation emitted from the pump source, a broad bandwidth electro-optic modulator in the cavity, means for coupling radiation from the pump source into the laser cavity, and control means for operating the modulator such that its turn off and turn on times are shorter than 2 nanosecond and such that its repetition rate is Xc/2nL, where x is an integer from 1 to 1,000,000, C is the speed of light, n is the index of refraction of the fiber, and L is the total length of the optical fiber n is the index of fraction of the fiber, and L is the length of the optical fiber.
- Assignee:
- NOV; NOV-91-023146; EDB-91-161828
- Patent Number(s):
- A; US 5008887
- Application Number:
- PPN: US 7-340448
- OSTI ID:
- 5114186
- Country of Publication:
- United States
- Language:
- English
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