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850nm 1mW TO46 SM VCSEL Laser Diode(without TEC)
With optimized optical characteristics, the 850 nm single-mode VCSEL is an ideal choice for high-demand sensing system applications. Its innovative chip design suppresses high-order longitudinal and transverse modes, and features stable linear polarization performance.
Product features:Vertical-cavity surface-emitting laser architecture;High operational reliability;Low power consumption design;TO46 metal hermetic package;High-speed modulation capability
Part Number:MP-VCS-850-1-TO46-SM
Application area:Data Center | Consumer Electronics | Industrial Sensing | Optical Fiber Access Network | Scientific Research Experiments
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Center Wavelength
850nm

Model parameters
Parameters | symbol | Min. value | Typical values | Max. value | unit | Note: |
Incident wavelength | λR | 840 | 850 | 860 | nm | T = 20°C, ITEC = 0, POP= 0.5 mW |
Threshold current | ITH | 0.50 | mA | T = 20°C | ||
Output power | Popt | 0.50 | mW | T = 0 … 50°C | ||
Threshold voltage | UTH | 1.80 | V | |||
Laser current | IOP | 2.0 | mA | Popt = 0.5 mW | ||
Laser voltage | UOP | 2.0 | V | Popt = 0.5 mW | ||
Electro-optical conversion rate | ηWP | 12 | % | Popt = 0.5 mW | ||
Slope performance | ηS | 0.3 | W/A | T = 20°C | ||
Differential series resistors | RS | 250 | Ω | Popt = 0.5 mW | ||
3dB modulation bandwidth | ν3dB | 0.10 | GHz | Popt = 0.5 mW (Due to ESD protection diodes) | ||
Relative noise intensity | RIN | -130 | -120 | dB/Hz | Popt = 0.3 mW @ 1 GHz | |
Wavelength-tuned current | 0.6 | nm/mA | ||||
Wavelength Tuning Temperature | 0.06 | nm/K | ||||
Thermal resistance | Rthermal | 3 | 5 | K/mW | ||
Edge mode suppression | 30 | dB | ||||
Beam divergence | θ | 10 | 25 | ° | Popt = 0.5 mW full 1/e2 bandwidth | |
Spectral bandwidth | Δν | 100 | MHz | Popt = 0.5 mW | ||
TEC current | ITEC | 500 | mA | Proper radiator is required | ||
NTC thermistor | 9.5 | 10.0 | 10.5 | kΩ | T= 25°C, | |
NTC temperature dependence | 10/exp[3892·( 1/298K-1/TOP)] | kΩ | ||||
Wavelength tuning TEC current | 0.008 | nm/mA | TEC current < 200 mA | |||
Absolute maximum
● Storage temperature -40~125°C
● Operating temperature -20~80°C
● Electrical power loss of 5 mW
● Forward laser current 2 mA
● Reverse current 10 mA
● Welding temperature* 270C°
● *TEC temperature must be below 150°C
Spectral diagram
Higher-order modes are strongly suppressed and the spectral bandwidth is extremely narrow

Beam profile
Beam profile
The far-field light intensity distribution of single-mode VCSEL is complete in accordance with the Gaussian mode

LIVT characteristic curves
You will benefit from linear performance and low threshold currents over a wide temperature range

Temperature/wavelength under TEC current tuning

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