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Beam Divergence

book.book

book.book

…Photo-Diode Sensor
Figure 2-40. Sensor Placement for Divergent Beam
Figure 2-41. Adjust the Collimating Lens
Connector Ferrule
SMA Connector
Photodiode Sensor
(D)
Active Diameter
Divergent Beam
(°)
(°) = sin-1 (NA)
Fiber Cable

Laser Beam Diagnostics

Laser Beam Diagnostics

…and Divergence Ranges. Beam Diagnostic Accessories Beam Diagnostic Accessories Components for Other Wavelength and Divergence Ranges. Accessories
* Attenuators, Beamsplitters and UV Adapters - Typical attenuations are 1:1 to 400,000:1, but even larger are possible.
* Extreme-UV Beam Intensity…

SureLock 633 nm Wavelength Stabilized Laser Diode

SureLock 633 nm Wavelength Stabilized Laser Diode

…Min Typ Max Unit Threshold Current Ith – 64 80 mA Operating Current Iop – 160 210 mA Operating Voltage Vop – 2.8 3.0 V Beam Divergence, Perpendicular Qv <2 mrad Beam Divergence, Parallel Qh <2 mrad Differential Efficiency DE (dP/dI) 0.7 mW/mA Operating Temperature2 Top 0 – 35 °C Storage Temperature2…

StingRay and BioRay Laser Diode Modules

StingRay and BioRay Laser Diode Modules

…is Coherent’s compact high-performance laser for Life Science applications with an elliptical beam output with a user-adjustable beam divergence (adjustable focus). With BioRay, the elliptical beam is easier to integrate into today’s particle measuring systems. With RS-232 control the laser power…

SureLock™ 638nm Wavelength Stabilized Laser Diode

SureLock™ 638nm Wavelength Stabilized Laser Diode

…Operating Voltage V op – 2.4 2.6 V Laser Reverse Voltage V rl – – 2 V Monitoring Output Current I m 0.07 0.15 0.2 MA Beam Divergence, Perpendicular Q v 16 21 24 Degrees Beam Divergence, Parallel Q h 7 10 13 Degrees Off Axis Angle, Perpendicular dQ v – – – Degrees Off Axis Angle, Parallel dQ h – – –…

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc


Divergence
The beam divergence of a laser beam is a measure for how fast the beam expands as it propagates in space.
There are different quantitative definitions in the literature. According to the most common definition, the beam
divergence is the derivative of the beam radius…

INNOVA FreD systems

INNOVA FreD systems

…0.06 496.5 0.60 244.0 0.10 488.0 1.50 238.2 0.03 476.5 0.60 229.0 0.01 457.9 0.35 Multiline UV 3 0.60 Beam Parameters 4 SHG Fundamental (514.5 nm) Beam Diameter (mm) 0.6-0.9 5 1.7 6 Beam Divergence (mrad) 7 0.5-0.85 0.5 Ouput Polarization 100:1 horizontal 100:1 vertical Power Stability 8 ±1.0% ±0.5%…

ModeMaster PC M-Squared

ModeMaster PC M-Squared

divergence +0.04 mrad ±5% of divergence +0.04 mrad ±5% of divergence +0.04 mrad ±5% of divergence +0.04 mrad — Accuracy - Waist Diameter (%) ±2% ±2 ±2 ±2 — Accuracy - Waist Location ±8% of input beam Rayleigh Range ±8% of input beam Rayleigh Range ±8% of input beam Rayleigh Range ±8% of input beam

ModeMaster Modular Components

ModeMaster Modular Components

…PC Scan Head Modular Components Components for Other Wavelength and Divergence Ranges The body design of the ModeMaster PC scanning head has modular lens and detector sets that allow quick changes to other wavelength or divergence ranges to suit your measurement needs. The UV-VIS-NIR body can be…

SureLock 785 nm Wavelength Stabilized Laser Diode

SureLock 785 nm Wavelength Stabilized Laser Diode

…Voltage V op – 2.0 2.8 V Beam Divergence, Perpendicular Qv 0.2 mrad Beam Divergence, Parallel Q h 0.1 mrad Differential Efficiency DE (dP/dI) 0.6 mW/mA Operating Temperature 2 T op 0 – 35 °C Storage Temperature 2 T s -10 – 60 °C Polarization – – 100:1 – – Collimated Beam Diameter 0.2 x 0.7 mm…

SureLock™ 785 nm Collimated, Wavelength Stabilized Laser Diode

SureLock™ 785 nm Collimated, Wavelength Stabilized Laser Diode

…1000 1500 mA Operating Voltage V op – 1.9 2.2 V Laser Reverse Voltage V rl – – 2 V Beam Size at Exit (FWHM) – 1.0 x 0.5 mm Emitter Size – 1 x 100 µm Beam Divergence, Perpendicular Q v 0.25 x 0.35 Degrees Beam Divergence, Parallel Q h 3.5 Degrees Differential Efficiency DE (dP/dI) 0.7 mW/mA Operating…

SureLock™ 640 nm Wavelength Stabilized Laser Diode

SureLock™ 640 nm Wavelength Stabilized Laser Diode

…Operating Voltage V op – 2.3 2.5 V Laser Reverse Voltage V rl – – 2 V Monitoring Output Current I m 0.05 0.15 0.4 MA Beam Divergence, Perpendicular Q v 25 30 35 Degrees Beam Divergence, Parallel Q h 6 8 10 Degrees Off Axis Angle, Perpendicular dQ v -2 – 2 Degrees Off Axis Angle, Parallel dQ h -2 – 2…