1. Design of an Optical Fiber Amplifier with Multiple Serial Pumping for Space Communications
- Author
-
Dirk Giggenbach
- Subjects
Optical amplifier ,Double-Clad Fiber ,Institut für Nachrichtentechnik ,Materials science ,Optical fiber ,Multi-mode optical fiber ,business.industry ,Amplifier ,Side Pumping ,Physics::Optics ,Optical parametric amplifier ,Fiber-optic communication ,law.invention ,Optics ,law ,Linear amplifier ,Multiple Serial Pumping ,Y-Fiber Coupler ,business ,Direct-coupled amplifier ,Fiber Amplifier - Abstract
The feasibility of an optical fiber amplifier as a booster amplifier for transmitter-terminals of free-space coherent laser communication systems has been investigated. To enhance the amplifier's efficiency and reliability in a harsh space environment a new pumping-scheme has been analyzed and demonstrated in an experimental set-up. The amplifier features efficient multiple serial coupling of the pump light into the multimode core of the double-clad fiber by using directional Y-couplers. Special attention has been paid to fiber-geometry, pump light absorption efficiency in the neodymium-doped single-mode core and the attenuation of pump and signal light.
- Published
- 1997