Highly efficient configuration of a Pr/sup 3+/-doped fluoride fiber amplifier module with an optical circulator
- 1 September 1993
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 5 (9) , 1011-1013
- https://doi.org/10.1109/68.257175
Abstract
A highly efficient Pr/sup 3+/-doped fluoride fiber amplifier configuration with an optical circulator, in which the input signal light is amplified both forward and backward through a Pr/sup 3+/-doped fluoride fiber, is investigated with a view to decreasing the drive current and improving the reliability of pump laser diodes (LD's). With this double-path configuration, a 25-dB signal gain is achieved at an LD drive current of 110 mA. This LD drive current is about half that needed for a conventional single-path configuration. It is also found that this double-path configuration provides a double-gain coefficient, a slightly low saturation power, and a slightly narrow spectral gain width.<>Keywords
This publication has 12 references indexed in Scilit:
- 15.1-dB-gain Pr/sup 3+/-doped fluoride fiber amplifier pumped by high-power laser-diode modulesIEEE Photonics Technology Letters, 1992
- Low-loss and stable fiber-to-waveguide connection utilizing UV curable adhesiveIEEE Photonics Technology Letters, 1992
- Noise characteristics of Pr 3+ -doped fluoride fibre amplifierElectronics Letters, 1992
- Gain characteristics of Pr/sup 3+/-Yb/sup 3+/ codoped fluoride fiber for 1.3 mu m amplificationIEEE Photonics Technology Letters, 1991
- 0.98- mu m strained quantum well lasers for coupling high optical power into single-mode fiberIEEE Photonics Technology Letters, 1991
- Laser diode pumped Pr 3+ -doped and Pr 3+ -Yb 3+ -codoped fluoride fibre amplifiers operating at 1.3 μmElectronics Letters, 1991
- Thermally-diffused expanded core fibres for low-loss and inexpensive photonic componentsElectronics Letters, 1991
- 38.2 dB amplification at 1.31 μm and possibility of 0.98 μm pumping in Pr 3+ -doped fluoride fibreElectronics Letters, 1991
- Gain and noise performance of fibre amplifiers operating in new pump configurationsElectronics Letters, 1991
- Low-loss laser diode module using a molded aspheric glass lensIEEE Photonics Technology Letters, 1990