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Optical fiber (800-Mbit/sec) transmission experiment at 1.05 microm
Applied Optics
|March 6, 2010
Summary
This study demonstrates 800-Mbit/sec optical fiber transmission at 1.05-microm wavelength using a LiNdP(4)O(12) laser. The system shows potential for over 10-km repeater spacing, limited by loss rather than dispersion.
Area of Science:
- Optoelectronics and Communications
Background:
- High-speed optical fiber transmission is crucial for modern telecommunications.
- Single-mode fiber systems require efficient lasers and modulators for optimal performance.
Purpose of the Study:
- To report an 800-Mbit/sec optical fiber transmission experiment at 1.05-microm wavelength.
- To evaluate the feasibility of extended repeater spacing in single-mode fiber systems.
Main Methods:
- Utilized a single-frequency LiNdP(4)O(12) laser for stable output.
- Employed a guided-wave Lithium Niobate (LiNbO3) modulator for Non-Return-to-Zero (NRZ) code modulation.
- Transmitted signals through 4-km single-mode optical fibers.
- Used a Germanium (Ge) avalanche photodiode for signal detection.
Main Results:
- Achieved 800-Mbit/sec transmission rate at 1.05-microm wavelength.
- Minimum receiving level of -30 dBm was recorded.
- Repeater spacing is primarily limited by signal loss, not dispersion.
- Feasibility of repeater spacing exceeding 10 km was demonstrated.
Conclusions:
- The developed optical fiber transmission system is capable of high-speed data transfer.
- Loss, not dispersion, is the limiting factor for repeater spacing in this configuration.
- Further investigation into system and device characteristics is warranted.
