Center of Excellence (COE) for
Photonic-Crystal Surface-Emitting Laser (PCSEL),
Kyoto University

Photonic-Crystal Surface-Emitting Lasers

For Paradigm Shifts in Smart Mobility and Smart Manufacturing

Semiconductor lasers have contributed to modern society over a wide range of fields, particularly tele- and data-communications and optical storage. To date, much interest has been devoted toward expanding the utility of semiconductor lasers for these fields by widening their range of accessible wavelengths and improving their modulation speed.

On the other hand, with regard to high-power applications, semiconductor lasers have had difficulty simultaneously achieving high output powers and high beam qualities which are important for Smart Mobility and Smart Manufacturing. So, their development has lagged behind that of other lasers, such as CO2 and fiber lasers. Moreover, as with many other lasers, semiconductor lasers have not been capable of on-chip beam pattern, polarization, and direction control; these functionalities required the addition of external elements which forfeits the advantage of compactness for which semiconductor lasers are renowned.

Now, with the development of photonic-crystal surface-emitting lasers (PCSELs) which we invented in 1999, this paradigm is expected to change; PCSELs are currently attracting much attention for their simultaneous achievement of high output power and high beam quality (=high brightness) as well as their exhibition of functionalities that are not easily achievable with other types of lasers, such as polarization and beam-pattern control as well as on-chip beam-direction control, which eliminates the need for bulky external optics.

To strengthen the research and development of PCSELs and make a social application of PCSELs, we recently established the Center of Excellence (COE) for PCSELs in Photonics and Electronics Science and Engineering Center (PESEC) in Kyoto University. The COE is currently operated under the project of Council for Science, Technology and Innovation (CSTI), Cross ministerial Strategic Innovation Promotion Program (SIP), “Photonics and Quantum Technology for Society 5.0”, under the CREST program (JP MJCR17N3) commissioned by the Japan Science and Technology Agency (JST), Japan.

What’s New

2021/10 CW 29W oscillation has been successfully realized at 940nm PCSEL (InGaAs/ GaAs), which has been presented in Inter-national Semiconductor
Laser Conference (ISLC 2021) by Katsuno and Noda et al.

2021/10 CW 80mW oscillation has been successfully realized at 1.3µm PCSEL (InGaAsP/ InP), which has been presented in Inter-national Semiconductor
Laser Conference (ISLC 2021) by Itoh and Noda et al.
(Collaboration work between Sumitomo Electric and Kyoto Univ.)

2021/9 Prof. Noda made a keynote talk  in 26th Microoptics Conference (MOC2021).

2021/7 Prof. Noda made a plenary talk  in Optica/OSK/OSJ Joint Symposia on Optics 2021.

2021/7 Prof. Noda made an invited talk  in Optoelectronics and Communications Conference (OECC 2021).

2021/7 LiDAR equipped with a photonic-crystal laser has been greatly miniaturized in volume (to one-third of its former size).

2021/5 Prof. Noda made a keynote talk  in Compound Semiconductor Week.

2021/4 Prof. Noda made a keynote talk in International Conference on Nano-photonics and Nano-optoelectronics (ICNN 2021)

2021/4 An image of our proposed “photonic-crystal laser enabling high-peak-power and short-pulse operation” appeared on the cover of the April issue of Nature Photonics.

2021/3 Movies on the development of photonic crystal lasers toward short-pulse and short-wavelength operations are released to the public.

2021/3 A paper on a new photonic crystal laser enabling high-peak-power short-pulse operation was published in Nature Photonics.

2021/3 Prof. Noda made a plenary talk and a key-note talk in SPIE Photonics West.

2020/11/13 Development of a new photonic crystal laser chip capable of electrical two-dimensional beam scanning is reported by foreign media.

2020/7/16 Professor Noda made an invited talk at OSA Advanced Photonic Congress, 13-16 July 2020.

2020/7/14 A paper on a new photonic crystal laser chip enabling electrical beam scanning in two dimensions was published in Nature Communications.

2020/6/30 We succeeded in the world’s first development of a LiDAR system equipped with a photonic crystal surface emitting laser. (Kyoto University) (JST) ― Reported in newspapers and on television.

2019/2 Prof. Noda made a plenary talk in SPIE Photonics West. The presentation is now uploaded in the web page of SPIE.

2019/2 An image of our proposed “double-lattice photonic-crystal resonator” appeared on the cover of the February issue of Nature Materials.

2018/12/18 “Double-lattice photonic-crystal resonators enabling high-brightness semiconductor lasers with symmetric narrow-divergence beams” was published in Nature Materials.

“Now, with the development of Photonic-Crystal Surface-Emitting Lasers (PCSELs), which we invented in 1999, the paradigm is certainly changing; PCSELs are attracting much attention for their simultaneous achievement of high output power and high beam quality (=high brightness), as well as their exhibition of functionalities that are not easily achievable with other types of lasers, such as polarization, beam-pattern control, and on-chip beam-direction control, which eliminates the need for bulky external optics.“

Professor Susumu Noda, Kyoto University