In a recent paper, [4] have developed a scheme for the stochastic implementation of arbitrary quantum operations on multimode single-photon qudit states by using reconfigurable linear-optic systems. Based on this idea, we explore the use of phase modulation for the realization of qubit channels in the frequency basis. Single-photon states belonging to two different frequency modes differing by the modulator s driving frequency represent the input dual-rail qubit states. The channel is implemented by a phase modulator followed by a fiber Bragg grating, taking advantage of the high degree of reconfigurability and microwave bandwidth shown by electrooptic modulation technology. The channels are realized by a combination of three techniques: 1) suitably designed driving waveforms, which are probabilistically addressed to the modulator; 2) the corresponding addressing probabilities; and 3) the grating transmittance at the values of the frequency basis. The proposed scheme results in nonoptimal success probabilities but is shown to allow for a compact implementation of the conventional qubit random unitary channels and the qubit amplitude-damping channel. ; Ministerio de Economía y Competitividad, Spain, TEC2011-29120-C05-02 ; Ministerio de Economía y Competitividad, Spain, TEC2011-29120-C05-05 ; Generalitat Valenciana PROMETEO 2008/092 ; Capmany Francoy, J.; Fernández-Pousa, CR. (2012). Realization of single-photon frequency-domain Qubit channels using phase modulators. IEEE Photonics Journal. 4(6):2074-2084. doi:10.1109/JPHOT.2012.2226022. ; Senia ; 2074 ; 2084 ; 4 ; 6