**Author details**

tice that the use of a more advanced technology has allowed us to use 3 stages instead of one

performances of the transimpedance: transimpedance gain *Zcl* by more than 16 times, sensitiv‐ ity improved by 7.5 times, but at a 4 times higher power consumption in the 0.13*μm* technolo‐ gy. At same power consumption the receiver sensitivity in the 0.13*μm* technology, if slightly

**Table 5.** Overview of 10 Gb/s Transimpedance receivers in the literature. LP and CP stand respectively for inductive

Concerning the design of a single stage 10GHz bandwidth transimpedance amplifier in a 0.13 *μm* PD-SOI CMOS technology, the low *Cin*, due as previously to the monolithic SOI inte‐ gration, has enabled us to achieve the highest feedback resistor and one of the highest gain and then the highest transimpedance gain-bandwidth product ZBW (see table 5), as we are achieving one of the highest bandwidth reported for 10Gb/s (theoretically a bandwidth of about 3/4 the data rate is sufficient so that 10 GHz could be related to 13Gb/s operation)). This is achieved without using inductive (LP) or capacitive (CP) peaking techniques which

ductors or capacitors to integrate), design complexity, need for tuning... Noise performances are also very good, especially compared to other CMOS designs. The power consumption of the TIA preamplifier (not the complete receiver) is one of the best achieved so far. However, coupled with the low responsivity of thin-film SOI photodiodes at 850nm, a sensitivity of 1.35*mW* or +1.3dBm is achieved for this monolithically integrated receiver for 10Gb/s optical communications at 850nm. At 405nm on the other hand, the same receiver achieves a high

) but at the expense of chip area (in‐

reduced, still remains more than 5 times better than the sensitivity of the 0.5*μm* design.

for same TIA bandwidth. This has naturally allowed a real increase of the

owing to its better *ft*

364 Photodiodes - From Fundamentals to Applications

and capacitive peaking techniques

allows to increase ZBW (or the bandwidth for same *Rf*

Aryan Afzalian and Denis Flandre

ICTEAM Institute Université catholique de Louvain, Louvain-La-Neuve, Belgium
