Y-Branch Surface-Etched Distributed Bragg Reflector Lasers at 850 nm for Optical Heterodyning

Price, R.K.; Verma, Varun B.; Tobin, K.E.; Elarde, V.C.; Coleman, J. J.

doi:10.1109/lpt.2007.904914

Cited by 49 publications

(26 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, these lasers are not suitable as an optical beat source for CW THz systems aimed at spectroscopic applications. Alternatively, optical beat sources comprised of two single-mode laser diodes (LDs) on a single chip have been demonstrated [12][13][14]. Although the proposed sources show stable dual-wavelength operation, further improvements in their tuning range are desired.…”

Section: Semiconductor Optical Amplifier Integrated Dual-mode Lasermentioning

confidence: 99%

Portable terahertz scanner for imaging and spectroscopy using InP-related devices

et al. 2015

View full text Add to dashboard Cite

Our recent studies in regards of developing portable THz scanner for imaging and spectroscopy systems are presented. In the course, high power tunable continuous wave (CW) THz emitter and high sensitivity THz receiver platforms are presented. Those platforms can be realized with tunable optical beating source, broadband photomixer, arrayed photomixer and Schottky barrier diode, evanescently-coupled photodiodes with high saturation current, and semiconductor optical amplifier (SOA) integrated optical beating source. On the system level, our recent THz thickness measurement systems and the THz line scanner imaging system are presented.

show abstract

Section: Semiconductor Optical Amplifier Integrated Dual-mode Lasermentioning

confidence: 99%

Portable terahertz scanner for imaging and spectroscopy using InP-related devices

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Up to now, their operating wavelengths mainly converge to 1.55 μm for InGaAs based photomixers and 0.8 μm for GaAs based systems [9,10]. However, the operating wavelengths of photomixers are not necessary to confine their intrinsic bandgap wavelength.…”

Section: 3 μM Dual Mode Lasermentioning

confidence: 99%

A tunable continuous-wave terahertz generator based on 1.3-μm dual-mode laser diode and travelling-wave photodiode

et al. 2013

View full text Add to dashboard Cite

We demonstrate the tunable continuous-wave (CW) terahertz generator based on the λ/4 phase-shifted 1.3 μm dualmode laser diode (DML) and travelling-wave photodiode (TWPD). The DML and TWPD operate as an optical beat source and terahertz photomixer, respectively. The laser diodes (LDs) operating at the 1.3 μm have more suitable characteristics as optical beat sources than the LDs operating at 1.55 μm because of their high efficiency and better thermal stability. The micro-heaters are integrated on top of each DFB LD for mode beat frequency tuning. The fabricated DML was continuously tuned from 230 GHz to 1485 GHz by increasing the temperature of each DFB section independently via integrated micro-heaters. The high-speed TWPD with an InGaAs absorber was designed and fabricated to efficiently generate the photomixing terahertz CW. A complementary log-periodic antenna was integrated with the TWPD to radiate the generated terahertz wave with minimum reflection in the wide frequency range. The terahertz characteristics of the tunable CW terahertz generator based on the DML and TWPD were measured in a fibercoupled, homodyne terahertz photomixing system. Our results of the tunable CW terahertz generator show the feasibility of a compact and highly efficient CW terahertz spectrometer and imager.

show abstract

“…Two-mode semiconductor lasers for this purpose have been demonstrated [1,2]. Monolithically integrated twowavelength DBR lasers for beat signal generation were also reported [3,4]. In this work, we present design and fabrication of an integrated two-wavelength laser consisting of two DBR lasers and a Y-branch waveguide amplifier for THz wave generation, and report the lasing characteristics.…”

Section: Introductionmentioning

confidence: 98%

Integrated AlGaAs quantum-well ridge-structure two-wavelength DBR laser for THz wave generation

Uemukai

Ishida

Ito

et al. 2010

22nd IEEE International Semiconductor Laser Conference

View full text Add to dashboard Cite

show abstract

Y-Branch Surface-Etched Distributed Bragg Reflector Lasers at 850 nm for Optical Heterodyning

Cited by 49 publications

References 14 publications

Portable terahertz scanner for imaging and spectroscopy using InP-related devices

Portable terahertz scanner for imaging and spectroscopy using InP-related devices

A tunable continuous-wave terahertz generator based on 1.3-μm dual-mode laser diode and travelling-wave photodiode

Integrated AlGaAs quantum-well ridge-structure two-wavelength DBR laser for THz wave generation

Contact Info

Product

Resources

About