1. Figure 7.2 is identical to Figure 6.14. It is reproduced here for convenient reference.
2. Fabrication of an access coupler with single-strand multimode fiber waveguides
3. Tapered gap prism couplers for high index materials
4. E.G. Rawson, Optical Fiber Communication Technical Digest, IEEE Catalog Number 79CH1431–6 QEA, p. 60 (1979).
5. Low‐loss reflection‐star couplers for optical‐fiber distribution systems