Frequency Conversion by Four-Wave Mixing in Semiconductor Laser Amplifiers: How to Relax the Filter Problem?
Abstract
In Ref.1 an all optical frequency conversion method was reported, which is based on nearly degenerate four-wave mixing (NDFWM) and homogeneous gain saturation in semiconductor laser amplifiers (SLA). This method promises a frequency conversion range up to about 10 THz (depending on the gain bandwidth of the SLA), a conversion efficiency n of more than 0 dB, the frequency conversion of a given data signal simultaneously to several frequencies and finally data transparency. However, it restricts the bit rate to < 1 Gbit/s. In two experiments a successful operation of this method was demonstrated 2, 3. A disadvantage of this frequency conversion method are the severe requirements on the resolution of the optical filter, which is necessary to select the converted data signal out of a multicomponent spectrum generated at the output of the SLA. In this paper we investigate how to relax the requirements on the selectivity of the optical filter.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 22, 1992
- Accession Number
- ADP007398
Entities
People
- G. Grobkopf
- H. G. Weber
- N. Schunk
- R. Ludwig
- R. Schnabel