@misc{indiciae513931c88bae,
  title = {Optically activated switch/modulator using a photoconductor and two channel waveguides},
  author = {Goldberg, L. and Lee, S. H.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770066379},
  note = {Source identifier: 19770066379}
}