Patent families    

Recently filed/received by team members and exploited in the Center    

VCSELs:    

• Patent Family 1 (TUB 117)
  Title: Vertical Surface Emitting Laser (photon lifetime tuning)
  Inventors: D. Bimberg, G. Larisch, JA Lott
  Patents: US 9,979,158, EU EP 16072 (validated in Germany, France, United Kingdom, Netherlands), China ZL1880005246.4
  Summary: Photon lifetime tuning using ultra‑thin dielectric layers to optimize VCSEL output power and energy‑to‑data‑rate.

• Patent Family 2 (CAS 101)
  Title: Surface Emitting Laser (flip‑chip bonding)
  Inventors: D. Bimberg, G. Larisch
  Patents: US 12,095,230 B2, EU EP 3 739 700 (validated in Germany, France, Netherlands), China CN 11316952A (under examination)
  Summary: Photon lifetime tuning using ultra‑thin dielectric layers to optimize VCSEL output power and energy‑to‑data‑rate.

• Patent Family 3 (CAS 102‑1)
  Title: Radiation Emitter (oxide aperture holes, polarization on demand, metal‑filled thermal sinks)
  Inventors: G. Larisch, S. Tian, D. Bimberg
  Patents: EU EP 3 961 829 (validated in Germany, France, Netherlands), US 12,100,935 B2, China CN 113594855A
  Summary: Enables high‑power single‑mode VCSELs with reduced series resistance and improved thermal handling.

• Patent Family 4 (CAS 102‑2)  
  Title: Radiation Emitter (multi‑aperture VCSEL)
  Inventors: G. Larisch, S. Tian, D. Bimberg
  Patents: US 17/170,709, EU EP 3 961 830 (validated in Germany, France, United Kingdom), China CN 112382927A (under examination)
  Summary: Multi‑aperture VCSEL enabling multiple single‑mode emitters in one mesa with switchable or multiplexed operation.

• Patent Family 5 (CAS 103)
  Title: Radiation Emitter (multi‑section VCSEL for multiplexing and polarization diversity)
  Inventors: G. Larisch, S. Tian, D. Bimberg
  Patents: US 11,936,163, EU EP 4 007 092 B1 (validated in Germany, France, United Kingdom), China CN 113140962A
  Summary: Multi‑section VCSEL architecture enabling advanced multiplexing and polarization‑diverse operation.

• Patent Family 6 (CAS 104)
  Title: Radiation Emitter and Method of Fabricating Them (blind‑hole thermal/electrical enhancement)
  Inventors: M. A. Maricar, S. Tian, D. Bimberg
  Patents: EU EP 3 961 830 (filed as EP 23199013, Sept. 22, 2023), US 18/287,303 (published March 19, 2026), China CN 118040455
  Summary: VCSELs and EELs incorporating blind holes filled with highly conductive materials to improve heat and current spreading.

• Patent Family 7 (CAS 105)
  Title: Radiation Emitter with Ring‑Shaped Bypass and Method of Fabricating Radiation Emitters
  Inventors: S. Tian, D. Bimberg
  Patents: EU EP 25 153 317.0 (publication Jan 7, 2026; priority EP 24 186 974.2, July 6, 2024), US 19/057,478 (filed Feb 19, 2025)
  Summary: Ring‑shaped bypass structure enabling controlled current spreading and improved thermal management in VCSELs.
  
  
  

High Brightness Edge Emitting Lasers:    

• Patent Family 1
  Title: Device Comprising a High‑Brightness Broad‑Area Edge‑Emitting Semiconductor Laser and Method of Making Them
  Inventors: V. Kalosha, D. Bimberg
  Patents: US 9,705,285 and EU EP 15 152 286.9
  Summary: High‑brightness broad‑area edge‑emitting (HIBBEE) laser with suppression of higher‑order modes, achieving record brilliance in the fundamental mode using a modified vertical photonic band‑gap epitaxial structure

• Patent Family 2
  Title: Device Comprising a Laser
  Inventors: V. Kalosha, K. Posilovic, D. Bimberg
  Patents: US 8,396,091 and EU EP 12 702 454
  Summary: Corrugated lateral waveguide structure enabling suppression of higher‑order modes, increased fundamental‑mode output power, and minimized astigmatism in the micron range.
  
  

Mode Locked Lasers    

• Patent Family 1
  Title: Optoelectronic Oscillator
  Inventors: D. Arsenijevic, M. Kleinert, D. Bimberg
  Patents: US 9,780,525, EU EP 14 742 458.4, Germany DE 102 013 211 633.0
  Summary: Suppression of timing jitter in mode‑locked multi‑GHz lasers to the femtosecond range using simple passive back‑coupling of a small proportion of emitted light.
  

• Patent Family — 2
  Title: Method and Device for Generating Short Optical Pulses
  Inventors: R. Rosales, D. Bimberg
  Patents: US 9,543,731 (issued October 1, 2017), EU EP 16156078.4 (filed February 17, 2016)
  Status: Patents in force
  Summary: Method and device enabling the generation of short optical pulses through optimized semiconductor laser dynamics.