1. R. Olshansky andS. M. Oaks,Appl. Opt. 17 (1978) 1830.
2. R. M. Hawk, ?Multimode Waveguide Attenuation Measurements? Technical Digest, Symposium on Optical Fiber Measurements, Boulder (NBS, 1980).
3. W. Heitmann, C. R. Day, U. Zwick andF. Mengel,Opt. Quant. Electron. 13 (1981) 47.
4. P. Kaiser, ?Loss Measurement of Graded-Index Fibers?, Accuracy Versus Convenience, Technical Digest, Symposium on Optical Fiber Measurements, Boulder (NBS, 1980).
5. A. B. Sharma, E. J. R. Hubach andS. J. Halme, ?An Accurate Method for the Measurement of Fiber Attenuations?, Technical Digest, Symposium on Optical Fiber Measurements, Boulder (NBS, 1980).