Description
The plasmonic Ring Resonator Modulator (RRM-P70) is an ideal solution for high-speed electro optic conversion in the O and C band. Featuring a bandwidth of beyond 70 GHz makes it a first choice for applications in measurement systems, radio-over-fiber (RoF) systems and for high-data-rate optical transport.
The RRM has a resonant spectrum with peaks and extinctions. This allows for a change of the operating point by tuning the wavelength of the laser source, making an additional voltage source obsolete.
Related Papers
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D. Bisang, et al, Plasmonic Modulators in Cryogenic Environment Featuring Bandwidths in Excess of 100 GHz and Reduced Plasmonic Losses (ACS Photonics, 2024)
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M. Eppenberger, et al, Resonant plasmonic micro-racetrack modulators with high bandwidth and high temperature tolerance (Nature Photonics, 2023)
Variant Selector
EO bandwidth | Optical band | RR variant | Ordering code |
70 GHz | O band | differential drive | RRM-P70-ow |
70 GHz | C band | differential drive | RRM-P70-cw |
Performance Data
O band | C band | |
Peak wavelength | 1310 nm | 1550 nm |
Insertion loss (IL) | <11 dB | <9 dB |
Static extinction ratio (ER) | >8 dB | >8 dB |
DC bias on/off voltage | <1.5 V | <1.5 V |
3-dB EO bandwidth | >70 GHz | >70 GHz |
Vп, eq @ 100 kHz, @ 50 Ohm* | <2 V | <2 V |
Free Spectral Range | ~4.7 nm | ~4.7 nm |
Maximum Ratings
O band | C band | |
Optical input power** | Contact us | 0 dBm |
RF input power @ 50 Ohm | 18 dBm | 18 dBm |
DC voltage at RF input | 0 V | 0 V |
DC bias voltage DC bias current | 2.5V 15 mA | 2.5V 15 mA |
Operating / storage temperature | ~25°C | ~25°C |
* The RRM-P70 plasmonic modulators are high-impedance devices. Twice the voltage provided by a 50-Ohm signal source will drop across the plasmonic modulator. Using a DC source or a high-impedance-matched driver, double the voltage is required to switch the modulator from the on to the off state.
** Operation time of 8000 Vh at 20°C with a Vdrive degradation < 10%.
Mechanical and Optical Specifications
Optical input and output | SMF/PM with FC/APC connectors |
Electrical RF interface | Differential, 1 mm female |
Electrical DC interface | 2x DC pins |