Electro-Optic Bias-Free Modulator Sort by: SKU Product Price Default Product Part No. Vendor Availability Price Compact Bias-Free, Single Polarization Intensity Modulator, 3 GHz Bandwidth IM-BF1001(WDMQuest) 3-4 Weeks $1,200.00 Bias-Free, with SMA Connector Intensity Modulator, 3 GHz Bandwidth IM-BF1000(WDMQuest) 6 Weeks $1,350.00