Unique 1TO structure low-cost optical sub assembly

We have newly developed a unique 1TO type OSA (optical sub assembly) for a 1.25 Gbps bi-directional optical SFX (SFF, SFP) transceiver. The LD, PD, WDM mirror, and TIA (transimpedance amplifier) are all mounted on a 10 lead compact stem. This 1TO type OSA needs only one lens for TX and RX. We fabricated samples for evaluation and the results were good.