US 12,007,602 B2
Quantum enhanced optical modulator or sensor
Amir H. Safavi-Naeini, Palo Alto, CA (US); Timothy Patrick McKenna, San Francisco, CA (US); and Hubert S. Stokowski, Stanford, CA (US)
Assigned to The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US)
Filed by The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US)
Filed on May 9, 2022, as Appl. No. 17/740,027.
Claims priority of provisional application 63/185,628, filed on May 7, 2021.
Prior Publication US 2022/0373735 A1, Nov. 24, 2022
Int. Cl. G02B 6/12 (2006.01); G02B 6/293 (2006.01)
CPC G02B 6/12004 (2013.01) [G02B 6/12007 (2013.01); G02B 2006/1204 (2013.01); G02B 2006/12138 (2013.01); G02B 2006/12142 (2013.01); G02B 6/29344 (2013.01)] 7 Claims
OG exemplary drawing
 
1. Apparatus comprising:
a squeezer configured to transform input coherent-state light to input squeezed-state light;
a passive waveguide splitter configured to receive the input squeezed-state light, and configured to output first squeezed-state light and second squeezed-state light;
a phase shifter configured to impose a relative phase shift between the first squeezed-state light and the second squeezed-state light according to an input of the phase shifter;
a passive waveguide combiner configured to receive the first squeezed-state light and the second squeezed-state light from the phase shifter, and configured to provide output squeezed-state light;
an anti-squeezer configured to receive the output squeezed-state light and configured to provide output coherent-state light.