Tunable Diode Lasers Simply Better™ Photonics

Simply Better ™ Photonics New Focus: Simply Better Photonics TM Founded in 1990 with the mission of providing Simply Better™ Photonics Tools, New Focus has built a portfolio of highperformance products that includes tunable lasers, optoelectronics, high-resolution actuators, stable optomechanics, vacuum and ultraclean solutions, and OEM engineered solutions. Our products are used in demanding applications around the world in semiconductor equipment, bio-medical research, industry, test and measurement and advanced research. As part of Newport we continue our focus on making great tools for scientists...

Tunable Diode Lasers New Focus Application Guide New Focus lasers and optical amplifiers are used by top scientists and engineers around the world, both in lab and industry, in a variety of cutting edge applications. Applications TLB-6600 Venturi™ Swept-Wavelength Tunable Lasers Available Wavelengths Tuning Range • Fiber-Bragg sensing • Spectroscopy • Telecom test and measurement • Metrology Swept Wavelength Wide Mode Hop Free Tuning TLM-8700 OEM Tunable Laser Modules • Spectroscopy • Microcavity Resonators • Nitrogen Vacancy Centers (NV-Centers) • Sensing TLB-6700 Velocity™ Widely Tunable Lasers...

Simply Better ™ Photonics Tunable External Cavity Diode Lasers Tunable External Cavity Diode Lasers (ECDLs) are employed in many applications, including coherent optical telecommunications, atomic and molecular laser spectroscopy, laser cooling, atomic clocks, environmental sensing, and optical microcavities. In addition to tunability, these applications often require narrow linewidth single mode operation. Semiconductor diode lasers typically operate with several longitudinal modes lasing simultaneously, leading to low coherence and large linewidths. One method of extracting highly coherent...

Tunable Diode Lasers Mode-hop-free Wide Tuning New Focus Lasers True single-mode tuning requires that the optical feedback be dominated by the external optics and not by reflections from the diode facet. We use AR-coated diodes to reduce residual diode reflectivities to below 0.001 which guarantees singlemode operation. We place the diode in an external laser cavity that is based on a modified Littman-Metcalf configuration. In this cavity, a grazing-incidence diffraction grating and a tuning element provide all the necessary dispersion for single-mode operation. The amplitudes of non-lasing modes...

Simply Better ™ Photonics Linewidth and Frequency Stability Once single-mode operation is established by the optics in the external cavity, the linewidth of the laser can be affected by acoustic coupling and cavity temperature variations, each of which can change the cavity length. It is also affected by electrical noise coupling, which causes changes in the index of refraction of the diode and in the piezo length (also affecting the cavity length). Since various noise contributions occur on different timescales (thermal > acoustic > electrical), the length of time over which a linewidth measurement...

Tunable Diode Lasers The Philosophy of New Focus Lasers New Focus lasers are designed to be complete and easy-to-use systems. Complete Systems New Focus laser systems are plug-and-play, fully-functioning systems which include active current drive and closed loop temperature control. TLB-7100 Vantage Laser and TLB-6800-LN Controller. Laser Head Recognition Safety Features For systems with modular laser heads and controllers, critical diode settings, mximum current and optimum temperature are stored in the laser head. These critical parameters are determined and set at the factory during the build...

Simply Better ™ Photonics TLB-6700 Velocity™ Widely Tunable Lasers • Guaranteed mode-hop-free tuning across entire tuning range • Coarse and fine wavelength control • Internal permanent fiber coupling • Armored output fiber • LabVIEW control available Select the Velocity for applications requiring wide (many nanometers) mode-hop-free tunability. Optomechanical Modal Spectroscopy (OMMS) (bottom image) of the natural vibrations of on-chip micron-scaled spheres is described by Tal Carmon (U of Michigan) and Kerry J. Vahala (Caltech) (Phys. Rev. Lett. 2007). CW optical power evanescently coupled...

Tunable Diode Lasers At New Focus we take pride in all of our products. We are especially proud of the Velocity Widely Tunable Laser Series. The Velocity offers complete single-mode tuning across its entire specified wavelength, over tens of nanometers and a piezoelectric transducer allows for fine tuning over 50-100 GHz. The Velocity has a side mode suppression ratio of >60dB (model dependent) • Huge mode-hop-free tuning range • Motorized and Piezo control for wide scanning and fine tuning • Higher power • Improved stability, <200 kHz linewidth • Integrated permanent fiber coupling Heterodyne...

Simply Better ™ Photonics More Robust • The enlarged drop-tested and shock proof housing ensures a robust system. • Thicker insulation increases thermal and mechanical isolation. • Integrated optical isolator and fiber coupling eliminates fiber misalignment. • Armored output fiber High Power • With a redesigned system, we are now able to incorporate thicker diodes, giving you more power to deliver to your experiments. Low Noise • More powerful temperature control reduces wavelength drift and power fluctuations. • Magnetic damping stabilizes the tuning arm and reduces vibrational noise. • A new...

Tunable Diode Lasers Min Mode-Hop Free Tuning Range2 Min Mode-Hop Free Tuning Range (Fine-Frequency) Typical Beam Size (mm) Linewidth (50 ms Integration Time) Wide Tuning Resolution Fine-Frequency Modulation Bandwidth Min Mode-Hop Free Tuning Range2 Min Mode-Hop Free Tuning Range (Fine-Frequency) Typical Beam Size (mm) Linewidth (50 ms Integration Time) Wide Tuning Resolution Fine-Frequency Modulation Bandwidth Specifications are subject to change. 2 Contact New Focus for all available wavelength ranges. 3 Fiber coupled and optical isolator options available. 4 Current modulation through controller....