Abstract
The development of erbium-doped fiber amplifiers has recently progressed rapidly. Highly efficient power conversion for 1.48μm wavelength pumping enables a post-amplifier to achieve output power greater than 100mW1). When pumped in 0.98μm wavelength, the erbium-doped fiber amplifiers showed very low noise property2), which permits high receiver sensitivity as a pre-amplifier.
© 1991 Optical Society of America
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