It permitted the use of a longer-focus mirror M1 on the output side of the cavity (Figure 2a), and therefore a wider output beam, which eliminated the need for an external beam expander.
However, total internal reflection may also lead to side-firing in less tapered tips such that a wider output beam divergence is observed.
This results in a very-high output impedance over a very wide output voltage range, accurate Up/Down current matching, and low transient glitches.
The ROIC achieves a high gain of 106 dB Ω, a wide linear output swing of about 1 V, an input referred noise current of 1.95 pA/√Hz and a minimum detectable signal of 0.5 μA at SNR=3.3, leading to a linear dynamic range of 1 10,000 with a 3.3 V power supply.
The paper presents two original high-accuracy exponential function synthesizers with wide output dynamic ranges.
The proposed converter has an acceptable performance and efficiency in sub-threshold voltages and also in the wide output current range.
The very wide output ranges are mainly due to the large range in the input values that in turn reflect the uncertainty and/or variability of these estimates.
The circuit does not require any internal compensation capacitor, being stable for a wide range of output load currents [0 100 mA] and a 1 μF output capacitor.
Lasers emitting in the green part of the spectrum are widely available to the general public in a wide range of output powers.
