The short answer if there is any "there" there for photonic computing is no, maybe.
You need to understand quantum physics[3,2]. For example, photonic computing, photonic logic does not have a switch equivalent as semiconducting (CMOS transistor) or superconducting (Josephson Junction JJ) but we have a photonic Mach Zener interferometer (MZI) and a photon detector.
Photonics and superconducting electronics is always going to be much larger in size (and therefore more expensive) than semiconductors build from few atoms.
In quantum physics photonics we have advantages like quantum impedance, you can replace wires with photon transmitters and photodetectors and thus switch with only a few photons instead of large numbers of electrons.
With photonics you can have billions of cheap low power data channels instead of high power wire bundles. But MZI as JJ will probably always be a few orders of magnitude larger than transistors so switching is not going to be better, but interferometry is.
Shorter answer still: just low power communications and information processing yes, computing no.
Bulk CMOS manufacturing is still cheaper than all the alternatives we have discovered or invented, until we learn to manufacture atom by atom or compute with single photons or electrons (also dependent on molecule by molecule self-assembly), we will stay with CMOS and Moore's law.
Just listen to David B. Millers[1] lectures [2], his lectures are a shortcut to reading all his papers[2] that explain it all, especially [3].
Email me, I'll give you a private lecture.
Your question's anwer is/was a summary of our whole lives research [4]:
You need to understand quantum physics[3,2]. For example, photonic computing, photonic logic does not have a switch equivalent as semiconducting (CMOS transistor) or superconducting (Josephson Junction JJ) but we have a photonic Mach Zener interferometer (MZI) and a photon detector.
Photonics and superconducting electronics is always going to be much larger in size (and therefore more expensive) than semiconductors build from few atoms.
In quantum physics photonics we have advantages like quantum impedance, you can replace wires with photon transmitters and photodetectors and thus switch with only a few photons instead of large numbers of electrons.
With photonics you can have billions of cheap low power data channels instead of high power wire bundles. But MZI as JJ will probably always be a few orders of magnitude larger than transistors so switching is not going to be better, but interferometry is.
Shorter answer still: just low power communications and information processing yes, computing no.
Bulk CMOS manufacturing is still cheaper than all the alternatives we have discovered or invented, until we learn to manufacture atom by atom or compute with single photons or electrons (also dependent on molecule by molecule self-assembly), we will stay with CMOS and Moore's law.
Just listen to David B. Millers[1] lectures [2], his lectures are a shortcut to reading all his papers[2] that explain it all, especially [3].
Email me, I'll give you a private lecture.
Your question's anwer is/was a summary of our whole lives research [4]:
[1] https://appliedphysics.stanford.edu/profile/35
[2] https://www.youtube.com/@davidmillerscience
[3] Attojoule Optoelectronics for Low-Energy Information Processing and Communication https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7805240
[4] Wafer Scale Integration Free Space Optics Computing https://www.youtube.com/watch?v=vbqKClBwFwI