High NA fiber compatible short wavelength O/E converter SPA series
SPA-1、SPA-2 650nm、SPA-3、SPA-4
Ideal for increasing the NA of fibers centered around plastic fiber.
In the SPD series, in order to capture emitted light from a fiber with as large a diameter as possible while using a PD with a small light-receiving diameter, the reduction ratio of the light-receiving optical system was set to 0.4 times. This allowed for the projection of emitted light from a fiber with a core diameter of 500 [µm] onto a PD light-receiving surface with a diameter of 0.2 [mm]. As a result, the maximum fiber NA value that could be received was limited to 0.25. In the SPA series, by changing the reduction ratio of the light-receiving optical system to 0.8 times, the maximum receiving NA was increased to 0.5. For example, using a PD with a receiving diameter of 0.8 [mm] in the SPA-2 at 650 nm, we successfully captured emitted light from a plastic fiber with a core diameter of 1 [mm] and NA=0.5, while maintaining a bandwidth from DC to 1.0 [GHz] during O/E conversion.
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basic information
■Photodetector: Si PIN PD ■Maximum Sensitivity Wavelength - 800[nm] (SPA-1, SPA-2 650nm) - 700[nm] (SPA-3, SPA-4) ■Conversion Sensitivity - 500[mV/mW]@658[nm] (SPA-1) - 1000[mV/mW]@658[nm] (SPA-2 650nm) - 500[mV/mW]@850[nm] (SPA-3) - 300[mV/mW]@850[nm] (SPA-4) ■Compatible Fiber Diameter - 100[μm] to 1.0[mm] (SPA-1, SPA-2 650nm) - Less than 0.25[mm] (SPA-3, SPA-4) ■Receiving NA Range - Up to a maximum of 0.5 ■Frequency Bandwidth - DC to 500[MHz] (SPA-1) - DC to 1.0[GHz] (SPA-2 650nm) - DC to 2.0[GHz] (SPA-3) - DC to 3.0[GHz] (SPA-4)
Price range
P3
Delivery Time
※If in stock, 1 to 2 weeks; if out of stock, within 1 month.
Applications/Examples of results
Measurement of fiber signals centered around plastic fibers, MOST devices, and HPCF fiber signals.
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Company information
We manufacture and sell uniquely designed E/O converters and O/E converters used for optical signal measurement (supporting DC to 3GHz). We also accept contract development for high-speed and wideband analog circuits, high-precision analog circuits, mixed analog-digital circuits, and products that integrate optical technology with electronic technology.