Fast thermo-optical modulators with doped-silicon heaters operating at 2 µm: erratum

Area of Science:

• Photonics
• Optical Engineering
• Materials Science

Background:

• Previous research reported performance metrics for a microring resonator (MRR) modulator.
• An error in the full width at half maximum (FWHM) measurement was identified.
• This necessitates recalculating key performance indicators such as Q factor, power consumption, and figure of merit (FOM).

Purpose of the Study:

• To correct erroneous performance data for an MRR modulator published previously.
• To re-evaluate the modulator's performance using accurate FWHM values.
• To confirm the device's leading position among 2µm-waveband tunable over-optic (TO) modulators.

Main Methods:

• The study involves recalculating the Q factor, power consumption, and FOM based on a corrected FWHM value.
• Performance comparison with existing 2µm-waveband TO modulators.

Main Results:

• The corrected FWHM of the MRR device is 0.22nm, not 0.11nm as initially reported.
• Recalculated Q factor, power consumption, and FOM values reflect the corrected FWHM.
• The MRR modulator's performance remains the best among 2µm-waveband TO modulators after corrections.

Conclusions:

• The corrected performance data reaffirms the MRR modulator's state-of-the-art status.
• The fundamental conclusions of the original paper remain valid.
• This highlights the importance of accurate parameter reporting in photonic device characterization.