Daniel J. Blumenthal

Daniel J. Blumenthal
OccupationsElectrical engineer, academic, author
Academic background
EducationB.S., Electrical Engineering
M.S., Electrical Engineering
Ph.D., Electrical Engineering
Alma materUniversity of Rochester
Columbia University
University of Colorado Boulder
Academic work
InstitutionsUniversity of California, Santa Barbara (UCSB)

Daniel J. Blumenthal is an electrical engineer, academic, and author. He is a distinguished professor at the University of California Santa Barbara (UCSB).

Blumenthal's research has focused on photonic integration for neutral atoms and trapped ion quantum sensing and computing, integration for optical communications, ultra-low loss silicon nitride waveguides, ultra-low linewidth integrated lasers, and photonic integrated circuits. He is a fellow of the Institute of Electrical and Electronics Engineers (IEEE), the Optica Society, and the National Academy of Inventors (NAI).

Education

Blumenthal earned a B.S. in Electrical Engineering from the University of Rochester in 1981. He received an M.S. in Electrical Engineering from Columbia University in 1988 and a Ph.D. in Electrical Engineering from the University of Colorado Boulder in 1993.[1]

Career

Blumenthal began his professional career as an engineer at StorageTek from 1981 to 1984, followed by a role as a senior engineer at Sievers Research from 1984 to 1985. Later, he began working as a research engineer at Columbia University, where he remained until 1988, and subsequently at the University of Pennsylvania until 1990.[1]

Blumenthal began his academic career at the Georgia Institute of Technology and worked as an assistant professor from 1993 to 1997. He then joined UCSB as an associate professor from 1997 to 2000, before being appointed professor in 2000. He also worked there as associate director of the Multidisciplinary Optical Switching Technology (MOST) Center.[1] He was later named distinguished professor, a position he continues to hold.[2] He is also the head of the Optical Communications and Atomic Quantum Photonic Integration Group (OCAQpi).[3]

Blumenthal held the appointment of chief technology officer (CTO) at Packet Photonics[1] and was president of SiNoptiq.[4] He has been a guest editor of the IEEE Journal of Selected Topics in Quantum Electronics[5] and the IEEE Journal on Selected Areas in Communications.[1]

Research

Blumenthal's research has focused on integrated photonics, the integration of light-matter quantum sensing and computing systems, ultra-low-noise microwave generation, and fiber-optic communications and sensing. He has conducted research on transferring table-scale optical quantum systems onto chip-scale platforms.[6] Some of his research examined silicon nitride (SiN) photonics,[7] demonstrating ultralow propagation losses in silicon nitride waveguides.[8] Other research topics have included optical communications and high-speed networking,[9] photonic switching systems with optical amplification,[10] optical-label switching,[11] and wavelength conversion.[12] He has also worked on integrated photonic platforms, including ultra-low-loss waveguides,[8] narrow-linewidth lasers,[13] and explored silicon nitride photonic integrated circuits (PICs) for applications including communications, beam steering, signal processing, sensing, as well as optical gyroscopes.[7]

Blumenthal's studies have examined optical packet switching for all-optical forwarding of ultra-high bit-rate data packets[14] and optical-label switching for routing IP traffic without payload detection.[15]

Awards and honors

Bibliography

Book

  • Buus, Jens; Amann, Markus-Christian; Blumenthal, Daniel J. (2005). Tunable Laser Diodes and Related Optical Sources (Second ed.). Wiley-Inerscience, IEEE Press. ISBN 9780470546758.

Selected articles

References

  1. 1 2 3 4 5 "Curriculum Vitae" (PDF). UC Santa Barbara Electrical and Computer Engineering Department. Retrieved April 27, 2026.
  2. ↑ "Daniel Blumenthal". UC Santa Barbara Electrical and Computer Engineering Department. Retrieved April 27, 2026.
  3. ↑ "Daniel Blumenthal". OCAQPI. Retrieved May 13, 2026.
  4. ↑ "Infleqtion Accelerates Commercialization of Quantum Products at Scale with Silicon Photonics Acquisitions". Infleqtion. 29 January 2024. Retrieved May 12, 2026.
  5. ↑ "IEEE Journal of Selected Topics in Quantum Electronics" (PDF). IEEE Photonics. Retrieved April 27, 2026.
  6. ↑ "Quantum Revolution: Atoms Trapped on a Chip". scitechdaily. 7 March 2025. Retrieved May 11, 2026.
  7. 1 2 Ríos, Carlos; Zhang, Yifei; Shalaginov, Mikhail Y.; Deckoff-Jones, Skylar; Wang, Haozhe; et al. (2021). "Multi-Level Electro-Thermal Switching of Optical Phase-Change Materials Using Graphene". Advanced Photonics Research. 2 (1): 7. Bibcode:2021AdPhR...200034R. doi:10.1002/adpr.202000034.
  8. 1 2 Buzaverov, Kirill A.; Baburin, Aleksandr S.; Sergeev, Evgeny V.; Avdeev, Sergey S.; Lotkov, Evgeniy S.; Bukatin, Sergey V.; Stepanov, Ilya A.; Kramarenko, Aleksey B.; Amiraslanov, Ali Sh.; Kushnev, Danil V.; Ryzhikov, Ilya A.; Rodionov, Ilya A. (2024). "Silicon Nitride Integrated Photonics from Visible to Mid-Infrared Spectra". Laser & Photonics Reviews. 18 (12) 2400508: 1,5,39. arXiv:2405.10038. Bibcode:2024LPRv...1800508B. doi:10.1002/lpor.202400508. ISSN 1863-8880.
  9. ↑ Chi, Nan; Xu, Lin; Zhang, Jianfeng; Holm-Nielsen, P.V.; Peucheret, C.; Yu, Siyuan; Jeppesen, P. (March 2006). "Improve the performance of orthogonal ASK/DPSK optical label switching by DC-balanced line encoding". Journal of Lightwave Technology. 24 (3): 1082. Bibcode:2006JLwT...24.1082C. doi:10.1109/JLT.2005.863274. ISSN 1558-2213.
  10. ↑ "Optical amplification in photonic switched crossconnect systems". Google Patents. Retrieved April 27, 2026.
  11. ↑ Chi, N.; Oxenlowe, L.K.; Mork, J.; Jeppesen, P. (2005). "A new orthogonal labeling scheme based on a 40-Gb/s DPSK payload and a 2.5-Gb/s PolSK label". IEEE Photonics Technology Letters. 17 (12): 2772. Bibcode:2005IPTL...17.2772X. doi:10.1109/LPT.2005.859546.
  12. ↑ Tucker, Rodney S. (2006). "The Role of Optics and Electronics in High-Capacity Routers". Journal of Lightwave Technology. 24 (12): 4665. Bibcode:2006JLwT...24.4655T. doi:10.1109/JLT.2006.885774.
  13. ↑ Ma, Yiming; Dong, Bowei; Lee, Chengkuo (2020). "Progress of infrared guided-wave nanophotonic sensors and devices" (PDF). Nano Convergence. 7 (1): 28. Bibcode:2020NanoC...7...12M. doi:10.1186/s40580-020-00222-x. PMC 7113365. PMID 32239361.
  14. ↑ Chowdhury, A.; Yeo, Yong-Kee; Yu, Jianjun; Chang, Gee-Kung (2006). "DWDM reconfigurable optical delay buffer for optical packet switched networks". IEEE Photonics Technology Letters. 18 (10): 1176. Bibcode:2006IPTL...18.1176C. doi:10.1109/LPT.2006.874711.
  15. ↑ Liu, Xiang; Wei, Xing; Su, Yikai; Leuthold, J.; Kao, Yuan-Hua; Kang, Inuk; Giles, R.C. (2004). "Transmission of an ASK-labeled RZ-DPSK signal and label erasure using a saturated SOA". IEEE Photonics Technology Letters. 16 (6): 1594. Bibcode:2004IPTL...16.1594L. doi:10.1109/LPT.2004.827859. ISSN 1941-0174.
  16. ↑ "President Names Outstanding Young U.S. Scientists". The White House (Clinton Administration). Retrieved April 27, 2026.
  17. ↑ "IEEE Fellows 2000-2009". IEEE Communications Society. Retrieved April 27, 2026.
  18. ↑ "Daniel J Blumenthal". Optical Society. Retrieved April 27, 2026.
  19. ↑ "Fellows List". National Academy of Inventors. Retrieved April 27, 2026.
  20. ↑ "The Optical Society Names Daniel J. Blumenthal 2020 C.E.K. Mees Medal Recipient". Optical Society. Retrieved April 27, 2026.
  21. ↑ "ENG Distinguished Lecture: Visible Light to Mid-Infrared Photonics for Atomic & Quantum Applications". U.S. National Science Foundation (NSF). 2 April 2024. Retrieved May 11, 2026.
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